If a bomb at rest explodes and splits into two equal fragments. These fragment will move in :
One direction and with the same velocity
Opposite directions with different velocities
Opposite directions with unequal speeds
Opposite directions with equal speed
A ball of mass 100gm is moving with a velocity of 10ms-1. The force of the blow by the bat acts for 0.01 seconds.Calculate the average force exerted by the bat ?
100 N
200 N
300 N
400 N
Which physical quantity is the measure of inertia ?
Density
Weight
Force
Mass
A cricket ball weighing 10 g and moving with a speed of 20ms-1 strikes a bat and remains in contact with it for 0.1s. Calculate the average force exerted by the ball on the bat ?
10 N
40 N
1 N
Based on whose ideas did Newton present the laws of motion?
Galileo Galilei
Edison
Cavendish
Graham Bell
A lift is descending with a constant velocity 'v'.A man in the lift drops a coin. The coin experiences an acceleration towards the floor equal to:
g+v
g-v
g
zero
The momentum of a toy bus of 0.01 kg moving with a velocity of 5 m/s is
0.005 kg m/s
0.05 kg m/s
0.005 N s
0.5 kg m/s
A mass of 2 kg at rest travels for 4 seconds with an acceleration of 1.5m/s2. The gain of momentum of the body is :
5 kg m/s
10 kg m/s
12 kg m/s
14 kg m/s
If A and B are two objects with masses 6 kg and 34 kg respectively,then
A has more inertia than B
B has more inertia than A
A and B have same inertia
none of the two has inertia
A force of 10 N is acting on an object of mass 10 kg. What is the acceleration produced in it?
1 m/s2
1 m/s
100 m/s2
100 m/s
