Newtons laws do not hold good for particles_______________? April 17, 2025 by admin A. at rest B. moving slowly C. move with high velocity D. move with velocity comparable to velocity of light
2nd law of motion gives the definition of________________? April 17, 2025 by admin A. force B. acceleration C. velocity D. both force and acceleration
Momentum depends upon__________________? April 17, 2025 by admin A. force acts on the body B. mass of the body C. velocity of the body D. both mass and velocity of the body
When a body moves in a straight line then its displacement coincides with__________________? April 17, 2025 by admin A. distance B. force C. acceleration is zero D. both A and B
Motorcycle safety helmet extends the time of collision hence decreasing the________________? April 17, 2025 by admin A. chance of collision B. force acting C. velocity D. impulse
During long jump, athlete runs before taking the jump. By doing so he__________________? April 17, 2025 by admin A. provide him a larger inertia B. decreases his inertia C. decreases his momentum D. increases his momentum
When collision between the bodies in a system is inelastic in nature then for system ____________________? April 17, 2025 by admin A. momentum changes but K.E remain conserve B. K.E changes but momentum remain conserve C. both momentum and K.E changes D. both momentum and K.E remain conserve
The acceleration in the rocket at any instant is proportional to the nth power of the velocity of the expelled gases. Where the value of n must be ? April 17, 2025 by admin A. -1 B. 1 C. 2 D. -2
Which of the following is not an example of projectile motion ? April 17, 2025 by admin A. a gas filled ballon B. bullet fired from gun C. a football kicked D. a base ball shot
When two bodies move toward each other with constant speeds the distance between them decreases at the rate of 6m / sec. If they move in the same direction the distance between them increases at the rate of 4m/sec. Then their speeds are________________? April 17, 2025 by admin A. 5m/s, 1m/s B. 3m/s, 3m/s C. 6m/s, 1m/s D. 4m/s, 2m/s
