With increase in mass , inertia of a body
increases
decreases
does not change
changes irregularly
A body of mass 500 g, initially rest, is acted upon by a force 10 kg for 10 s. Then the acceleration caused by the force is (taken g = 10 ms-2).
20 ms-1
200 ms-1
200 ms-2
20 ms-2
A ball of mass 100g is moving with a velocity 10 m51. It is brought to rest after traveling a distance 5 m, by applying a resistive force. Then the resistance force applied is:
10 N
-1 N
0.10 N
1 N
Inertial mass mi of a body is given by
F/a
W/g
MG/a
MG/g
A freely falling body experiences weightlessness.This is because the gravitational force is
Zero
Maximum
Utilised for getting acceleration
Utilised for getting retardation.
Si unit of linear momentum is
Kgm/s2
kgm/s
Kgm
Kg/s2
With increase in mass,the weight of bodies
decrease
remains some
Cannot be predicted
A body of mass 500g initially at rest, is acted upon by a force 10 kg f for 10s. Then the velocity acquired by the body is:
100 ms-2
2000 ms-1
2000 ms-2
Momentum of a body depends
Only on mass of the body
Only on weight of the body
Only on velocity of the body
Mass and velocity of the body
A 5kg rifle fires a log bullet at a velocity 500ms-1.The recoil velocity of the rifle is
2ms-1
5ms-1
1ms-1
10ms-1