Worksheetsforce and laws of motion
Total questions: 6
Worksheet time: 6mins
for how long should a force of 100N acts on a body of 20KG so it acquires a velocity of 100m/s from rest?
18 secs
19 secs
22 secs
20 secs
A 150g ball travelling at 30m/s strikes the palm of players hand and is stopped in 0.05s. find the force exerted by the ball on hand?
10N
80N
90N
100N
A Truck of mass 500kg moving at 4m/s collides with another truck of mass 1500kg moving in the same direction at 2m/s. what is their common velocity just after collision if they mive off together?
2.5 m/s
5 m/s
10 m/s
20 m/s
A heavy car A, of mass 2000kg travelling at 10 m/s has head on collision with a sport car B, of mass 500kg. if both car stops dead on colliding. what was the velocity of car B?
-40 m/s
20 m/s
30 m/s
10 m/s
a car of mass 2400kg moving with a velocity of 20 m/s is stopped in 10 sec in applying brakes. calculate the retardation and retarding force?
1 m/s² , - 1000N
2 m/s² , - 4800N
3 m/s² , - 5000N
4 m/s² , - 4800N
a hockey ball of mass 200g travelling at 10 m/s is struck by a hockey stick so as to return it along its original path with a velocity of 5 m/s. calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick?
-3 kg m/s
-2 kg m/s
-8 kg m/s
-4 kg m/s
