Phys 165 Module 2 Exam
A ball is tossed vertically upward with a speed of 10.Zero m/s. At the peak of its route, the ball
has ________. - ANS-Zero Speed
A ball is tossed vertically upward with a speed of 2.50 m/s. When it is stuck at the same top from
which it became thrown, it's going to have a downward velocity of approximately ________. -
ANS-10 m/s
A baseball player slides into 3rd base. Before the slide, he is jogging 4.30 m/s and he slides a
distance of two.50 m. What is the baseball player's acceleration? - ANS-a=vf^2-vi^2/2delta*d
solution in m/s^2
A vehicle transferring at 28.0 m/s slows to a forestall for a forestall sign up thirteen.5 s. What is
the acceleration of the automobile? - ANS-a=vf-vi/t answer in m/s^2
A vehicle with a speed of eleven.Zero m/s is uniformly increased to a pace of forty eight.0 m/s in
7.00 s. During this time, it will tour _________. - ANS-Use delta*d=half of(vf+vi)delta*t answer in
m
A hiker's displacement from camp is 853 m @ 27.0∘North of East. Determine the following
values for the hiker's displacement from camp:
a. What is the North-South Component of the hiker's displacement from camp?
1. 760. M North2. 387 m North3. 760. M South4. 387 m South
b. What is the East-West Component of the hiker's displacement from camp?
1. 760. M West2. 387 m West3. 760. M East4. 387 m East - ANS-a) a=hcos()=
853mcos(27.Zero) = 760N
b) o=hsin() = 853 sin (27) = 387E
A rock dropped off of a cliff is in loose fall all through its movement to the lowest of the cliff.
Which of the following statements is NOT true approximately the rock's movement? - ANS-a)
The pace of the rock will increase as it falls
b) The acceleration of the rock is constant because it falls
c) Gravity is the best pressure performing on the rock
d) The distance that the rock falls is the identical for every 2d that it falls.
Answer is D
A rock is thrown downward at 11.Zero m/s. It keeps to fall freely for 1.23 s. Answer the
subsequent questions on the rock's movement.
A. Calculate the distance that the rock fell at some point of this time.B. Which of the following
equations are MOST suitable for calculating the distance that the rock fell?
1. V=ΔdΔt
2. Δd=viΔt+1/2aΔt2
three. Δd=half(vf+vi)Δt
four. Vf2=vi2+2aΔd
, c. Calculate the very last pace of the rock.
D. Which of the following equation is MOST suitable for calculating the final pace of the rock?
1. V=ΔdΔt
2. Vf=vi+aΔt
three. Δd=half of(vf+vi)Δt
4. Vf2=vi2+2aΔd
e. What is the acceleration of the rock at the same time as it's miles in unfastened fall?
1. It is zero for the reason that rock is in constant motion
2. The acceleration can not be decided
three. Nine.Eighty ms2 , upward
four. 9.80 ms2 , downward - ANS-a) delta*d=vi*delta*t+1/2a*delta*t^2 plug and chug solution in
m
b) 2
c) vf=vi+a*delta*t solution in m/s
d) 2 or 3
e four
A runner shifting at three.Seventy six m/s hurries up to 7.Eighty five m/s in 3.37 s. What is the
runner's acceleration? - ANS-a=vf-vi/t solution in m/s^2
A safety defend walks across the perimeter of a building for the duration of one of his rounds.
The distance he travels across the building is 528 m and it takes him 367 s to finish one lap
across the constructing. Determine the following physical quantities:
a. His average velocity _____
b. His common pace _____ - ANS-a) v=d/t solution in m/s
b) v=d/t answer is 0 considering he starts and forestalls inside the same location
A football ball is kicked at a 25.Zero∘ degree angle above horizontal at 15.0 m/s. Assume that
the football ball is kicked from degree ground and that it lands at ground level. For the football
ball's flight through the air, answer the subsequent questions.
A. What is the football ball's preliminary vertical pace?B. Which of the following equations is
MOST appropriate for calculating the football ball's preliminary vertical pace?
1. SinΘ=oh
2. CosΘ=ah
three. TanΘ=oa
4. A2+b2=c2
c. What is the football ball's initial horizontal speed?D. Which of the subsequent equations is
MOST appropriate for calculating the football ball's preliminary horizontal pace?
1. SinΘ=oh
2. CosΘ=ah
3. TanΘ=oa
four. A2+b2=c2
A ball is tossed vertically upward with a speed of 10.Zero m/s. At the peak of its route, the ball
has ________. - ANS-Zero Speed
A ball is tossed vertically upward with a speed of 2.50 m/s. When it is stuck at the same top from
which it became thrown, it's going to have a downward velocity of approximately ________. -
ANS-10 m/s
A baseball player slides into 3rd base. Before the slide, he is jogging 4.30 m/s and he slides a
distance of two.50 m. What is the baseball player's acceleration? - ANS-a=vf^2-vi^2/2delta*d
solution in m/s^2
A vehicle transferring at 28.0 m/s slows to a forestall for a forestall sign up thirteen.5 s. What is
the acceleration of the automobile? - ANS-a=vf-vi/t answer in m/s^2
A vehicle with a speed of eleven.Zero m/s is uniformly increased to a pace of forty eight.0 m/s in
7.00 s. During this time, it will tour _________. - ANS-Use delta*d=half of(vf+vi)delta*t answer in
m
A hiker's displacement from camp is 853 m @ 27.0∘North of East. Determine the following
values for the hiker's displacement from camp:
a. What is the North-South Component of the hiker's displacement from camp?
1. 760. M North2. 387 m North3. 760. M South4. 387 m South
b. What is the East-West Component of the hiker's displacement from camp?
1. 760. M West2. 387 m West3. 760. M East4. 387 m East - ANS-a) a=hcos()=
853mcos(27.Zero) = 760N
b) o=hsin() = 853 sin (27) = 387E
A rock dropped off of a cliff is in loose fall all through its movement to the lowest of the cliff.
Which of the following statements is NOT true approximately the rock's movement? - ANS-a)
The pace of the rock will increase as it falls
b) The acceleration of the rock is constant because it falls
c) Gravity is the best pressure performing on the rock
d) The distance that the rock falls is the identical for every 2d that it falls.
Answer is D
A rock is thrown downward at 11.Zero m/s. It keeps to fall freely for 1.23 s. Answer the
subsequent questions on the rock's movement.
A. Calculate the distance that the rock fell at some point of this time.B. Which of the following
equations are MOST suitable for calculating the distance that the rock fell?
1. V=ΔdΔt
2. Δd=viΔt+1/2aΔt2
three. Δd=half(vf+vi)Δt
four. Vf2=vi2+2aΔd
, c. Calculate the very last pace of the rock.
D. Which of the following equation is MOST suitable for calculating the final pace of the rock?
1. V=ΔdΔt
2. Vf=vi+aΔt
three. Δd=half of(vf+vi)Δt
4. Vf2=vi2+2aΔd
e. What is the acceleration of the rock at the same time as it's miles in unfastened fall?
1. It is zero for the reason that rock is in constant motion
2. The acceleration can not be decided
three. Nine.Eighty ms2 , upward
four. 9.80 ms2 , downward - ANS-a) delta*d=vi*delta*t+1/2a*delta*t^2 plug and chug solution in
m
b) 2
c) vf=vi+a*delta*t solution in m/s
d) 2 or 3
e four
A runner shifting at three.Seventy six m/s hurries up to 7.Eighty five m/s in 3.37 s. What is the
runner's acceleration? - ANS-a=vf-vi/t solution in m/s^2
A safety defend walks across the perimeter of a building for the duration of one of his rounds.
The distance he travels across the building is 528 m and it takes him 367 s to finish one lap
across the constructing. Determine the following physical quantities:
a. His average velocity _____
b. His common pace _____ - ANS-a) v=d/t solution in m/s
b) v=d/t answer is 0 considering he starts and forestalls inside the same location
A football ball is kicked at a 25.Zero∘ degree angle above horizontal at 15.0 m/s. Assume that
the football ball is kicked from degree ground and that it lands at ground level. For the football
ball's flight through the air, answer the subsequent questions.
A. What is the football ball's preliminary vertical pace?B. Which of the following equations is
MOST appropriate for calculating the football ball's preliminary vertical pace?
1. SinΘ=oh
2. CosΘ=ah
three. TanΘ=oa
4. A2+b2=c2
c. What is the football ball's initial horizontal speed?D. Which of the subsequent equations is
MOST appropriate for calculating the football ball's preliminary horizontal pace?
1. SinΘ=oh
2. CosΘ=ah
3. TanΘ=oa
four. A2+b2=c2
