PHYS 1010 Questions and Answers Graded
A+
friction of a an object is ____ once is starts moving than when it is stationary LESS
drag force opposite direction of the motion
-proportional to the velocity squared
newton's third law for every action there is an equal and opposite reaction
-forces occur in pairs
Hooke's law F=k∆L
where ∆L is the amount of deformation produced by force F and k is a constant dependent on
shape/composition of an object
compression applying forces to both ends of an object to squeeze it together
-will compress by ∆L
, Young's modulus ratio of stress to strain
stress= F/A
strain= ∆L/L0
shear stress applied parallel to the surface of an object
Bulk modulus stress applied to all faces of an object equally
VELOCITY
W parallel wsinθ= mgsinθ
W perpendicular wcosθ= mgcosθ
acceleration parallel F/m= mgsinθ/m= gsinθ
Tension F= T-W= 0 (if stationary)
T=W=mg
A+
friction of a an object is ____ once is starts moving than when it is stationary LESS
drag force opposite direction of the motion
-proportional to the velocity squared
newton's third law for every action there is an equal and opposite reaction
-forces occur in pairs
Hooke's law F=k∆L
where ∆L is the amount of deformation produced by force F and k is a constant dependent on
shape/composition of an object
compression applying forces to both ends of an object to squeeze it together
-will compress by ∆L
, Young's modulus ratio of stress to strain
stress= F/A
strain= ∆L/L0
shear stress applied parallel to the surface of an object
Bulk modulus stress applied to all faces of an object equally
VELOCITY
W parallel wsinθ= mgsinθ
W perpendicular wcosθ= mgcosθ
acceleration parallel F/m= mgsinθ/m= gsinθ
Tension F= T-W= 0 (if stationary)
T=W=mg
