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MCQ: Acceleration that is produced by a 15N force in a mass of 8 kg will be equal to

1. 1.5 ms−2
2. 1.87 ms−2
3. 2.35 ms−2
4. 2 ms−2

B

MCQ: When a net force act on a body, it produces acceleration in body in direction of net force which is directly proportional to net force acting on body and inversely proportional to its mass. This statement is called

1. newton's 2nd law of motion
2. newton's 1st law of motion
3. newton's 3rd law of motion
4. law of momentum

A

MCQ: A body of mass 10 kg is moving with velocity of 15 ms−1. force required to stop it in 3 seconds should be

1. 50 Ns
2. 100 Ns
3. 75 Ns
4. 170 Ns

C

MCQ: A bullet of mass 30 g is fired from a gun with a muzzle velocity 90ms−1. If its mass is 4 kg then recoil of gun will be

1. − 0.34 ms−1
2. 0.54 ms−1
3. − 0.54 ms−1
4. 0.34 ms−1

C

MCQ: Acceleration produced in a 8 kg mass when force acts on a body of 5 kg produces acceleration of 10 ms-2 is

1. 6.25 ms-2
2. 6.25 ms-1
3. 5 ms-2
4. 4 ms-2

A