**1131. The dynamic energy of a body is expressed to increment by 300% . The relating expansion in energy of the body will be :**

A. 50 Percent

**B. 100 Percent***

C. 200 Percent

D. 300 Percent

**1132. A heavier weight and a light weight have equal kinetic energies . Then :**

A. Both have equal linear momentums

**B. Heavier weight will have greater linear momentum ***

C. Lighter weight will have greater linear momentum

D. Examination can’t be made based on given information

**1133. A cricket ball is thrown vertically upwards . The total energy (Sum of kinetic and potential energies ) will be :**

A. Least at the ground while going up

B. Maximum at the maximum height reached

C. Maximum at mid way while ascending

**D. Same throughout the flight ***

**1134. Two balls of same size , one of mass 10kg and other of mass 20 kg, are dropped simultaneously from a tower. When the balls are 2m above the ground , They will have the same :**

**A. Acceleration ***

B. Momentum

C. Kinetic energy

D. Potential energy

**1135. Which of the following statements is wrong ?**

A. Impulse equals the change in momentum

**B. Activity and response are equivalent and inverse and consequently drop one another ***

C. The momentum of a system of two bodies is conserved when there is no external force acting on either body

D. The work done on a particle must equal changes in its kinetic energy

**1136. A 150 gm Cricket ball moving at 20m/sec is caught by a player and the catching process is completed in 0.1 second. The force of blow exerted by the ball on the hands of player is :**

A. 11 N

B. 12 N

C. 24 N

**D. 30 N ***

**1137. A ball weighing 0.01 kg hits a hard surface vertically with a speed of 5m/second and rebounds with the same speed. The ball remains in contact with the surface for 0.01 second. The average force exerted by the surface on the ball in newtons is :**

A. 0.1

B. 1.0

C. 5.0

**D. 10.0 ***

**1138. When a bullet is fired from a gun, it is recoiled in the backward direction . It is due to :**

A. Impulse

B. Inertia

**C. Conservation of momentum ***

D. Conservation of energy

**1139. A bomb of mass 20kg explodes into two pieces of mass 5 kg and 15 kg. If velocity of first part is 300 m/s, The velocity of other part would be :**

A. Zero

B. 30 m/s

**C. 100 m/s ***

D. 900 m/s

**1140. A body of mass m moving towards right with a constant velocity v hits another body of twice the mass moving towards left with half the velocity . If they stick together on collision,they will:**

**A. Come to rest ***

B. Move towards right

C. Move towards left

D. Can come to rest or move in any direction depending upon magnitude of masses and their velocities