Laws of Motion

Related Questions

• A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2. the weight of the block is

  ---

• The maximum speed that can be achieved without skidding by a car on a circular unbanked road of radius R and coefficient of static friction $\mu $, is

  ---

• The time period of a simple pendulum measured inside a stationary lift is found to be T. If the lift starts accelerating upwards with an acceleration g/3, the time period is

  ---

• A body of mass 2 kg is being dragged with uniform velocity of 2 m/s on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.20. The amount of heat generated in 5 sec is $(J = 4.2\,joule/cal$ and $g = 9.8\,m/{s^2})$

  ---

• Work done by a frictional force is

  ---