Laws of Motion

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Question

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Question 1 : The mass of a body which is equal to the ratio of the force acting on a body to the acceleration produced in the body is
1. the gravitational mass
2. the electromagnetic mass
3. the internal mass
4. the inertial mass
Answer
8227

Question 2 : A spherical ball of mass 10-6 kg hits a wall 1000 times per second normally with a velocity of 1000 m/s and rebounds with same velocity along the initial direction. The force experienced by the wall is
1. 1 N
2. 4 N
3. 2 N
4. 8 N
Answer
8228

Question 3 : A machine gun fires a bullet of mass 40 g with a velocity of 1200 ms-1. The man holding it can exert a maximum force on 144 N on the gum. How many bullets can he fire per second at the most?
1. one
2. two
3. three
4. four
Answer
8229

Question 4 : A passenger in a moving bus is thrown forward when the bus is suddenly stopped. This is explained
1. by the principle of conservation of momentum
2. by Newtons third law
3. by Newtons second law
4. by Newtons first law
Answer
8230

Question 5 : A passenger sitting in a bus moving at uniform speed, feels pushed backward whenever the bus is accelerated forward. This type of force is called
1. Gravitational force
2. frictional force
3. real force
4. fictitious force or pseudo force
Answer
8231