Physics I. Introductory Dynamics Problems Name
1
Determine the unbalanced forec necesary to acelerate a 2.60 kg object at a rate of 14.0 ava”
2. Calculato the (a) mass of a 23.0N block and (b) unbalanced force necessary to accelerate it at 270 m/3”.
3
Calculate the (a) mass of a 17.0 lb object and (b) its acceleration if an unbalanced force of 41.0 lb acts on it.
4.
A 10.0 lb object rests on a horizontal surface that has a coefficient of friction of 0.200. Calculate (a) its mass
and (b) the net force necessary to accelerate it sideways at a rate of 5.00 ft/s
5. A 275 kg cat is to be lifted straight upwards from rest so that it reaches a final velocity of 15.0 m/s after a
time of 3.00 seconds. Calculate (a) the cat's acceleration and (b) the net force required to accelerate it.
6. You will launch your 224 g model airplane off your model aircraft carrier by catapult. The catapult exerts an
unbalanced force of 250,000 dynes as it accelerates the plane from rest over a displacement of 150.0
cm
Determine (a) the acceleration and (b) final velocity of the airplane when it leaves the carrier