DYNAMICS: PHYSICS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

DYNAMICS: PHYSICS QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
net force - ANSWER vector sum of all forces acting on objects



when the net force is 0, ..... - ANSWER forces are balances and are in equilibrium



newton's first law of motion (law of inertia) - ANSWER an object in rest will remain at rest and an object
in motion will remain in motion unless an unbalanced force acts on it



an unbalanced force produces a change in ___________? - ANSWER velocity (an acceleration, change in
speed and direction or both)



inertia - ANSWER resistance to change in motion

-directly proportional to the mass



mass - ANSWER amount of matter an object has

-kilogram (kg)



examples of newton's first law of motion - ANSWER softball pitcher as she releases the ball during a
game into the catcher's glove



newton's second law of motion - ANSWER when an unbalanced force acts on a body, it accelerates the
body in direction of the force

-an unbalanced force produces an acceleration on a mass



formula - ANSWER a=fnet/m or f=ma

-units m/s^2 , kg



f is the net force - ANSWER -same direction, you add

-opposite direction, you subtract