FOR MORE EXAMS
EMAIL:
Physics 111 Final Exam Review Problems
with 100% accurate solutions + rationales
1. A constant force F= (1,0,4) (in Newtons) acts on a particle which moves
from point A with coordinates (0,7,4) to point B with coordinates (-2,4,6)
(all in meters). Find the work (in J) done by the force F on the path AB.
Ans. 6
2. In order to find the speed of a fast bullet, it is fired into a 4.0 kg wooden
block on a horizontal surface. The bullet gets stuck in the block which
starts moving with the speed of Vf=2.5 m/s. Find the original speed of the
bullet Vi if its mass is 7.54 gram.
Ans. 1330
1
FOR MORE EXAMS
EMAIL:
,FOR MORE EXAMS
EMAIL:
3. For the hydraulic lift shown in figure, what must be the ratio of the
diameter of the vessel at the car to the diameter of the vessel where the
force F1 is applied so that a 1520 kg car can be lifted with a force F1 of just
125 N?
4. Find the tension T in each cable and the magnitude and direction of the
force exerted on the strut by the pivot in the arrangement in figure below.
Let W be the weight of the suspended crate full of priceless art objects.
The strut is uniform and also has weight W.
2
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
Ans. T= 2.60W; F= 3.27W and θ=37.6o
5. A uniform beam of length 5.5 m and negligible mass is attached to the
vertical wall and supports a 120 kg ball as shown in the figure. If θ1 = 380
and θ2 = 420 what is the tension T in the cable?
Ans. 735 N
3
FOR MORE EXAMS
EMAIL:
EMAIL:
Physics 111 Final Exam Review Problems
with 100% accurate solutions + rationales
1. A constant force F= (1,0,4) (in Newtons) acts on a particle which moves
from point A with coordinates (0,7,4) to point B with coordinates (-2,4,6)
(all in meters). Find the work (in J) done by the force F on the path AB.
Ans. 6
2. In order to find the speed of a fast bullet, it is fired into a 4.0 kg wooden
block on a horizontal surface. The bullet gets stuck in the block which
starts moving with the speed of Vf=2.5 m/s. Find the original speed of the
bullet Vi if its mass is 7.54 gram.
Ans. 1330
1
FOR MORE EXAMS
EMAIL:
,FOR MORE EXAMS
EMAIL:
3. For the hydraulic lift shown in figure, what must be the ratio of the
diameter of the vessel at the car to the diameter of the vessel where the
force F1 is applied so that a 1520 kg car can be lifted with a force F1 of just
125 N?
4. Find the tension T in each cable and the magnitude and direction of the
force exerted on the strut by the pivot in the arrangement in figure below.
Let W be the weight of the suspended crate full of priceless art objects.
The strut is uniform and also has weight W.
2
FOR MORE EXAMS
EMAIL:
, FOR MORE EXAMS
EMAIL:
Ans. T= 2.60W; F= 3.27W and θ=37.6o
5. A uniform beam of length 5.5 m and negligible mass is attached to the
vertical wall and supports a 120 kg ball as shown in the figure. If θ1 = 380
and θ2 = 420 what is the tension T in the cable?
Ans. 735 N
3
FOR MORE EXAMS
EMAIL:
