Part 1

A stone is dropped from the top of a building in a high wind. The wind exerts a steady horizontal force on the stone as it falls. The path od the stone is A stone is dropped from the top of a building in a high wind. The wind exerts a steady horizontal force on [...]

A force F =v ×A is exerted on a particle in addition to the force of gravity, where v is the velocity of the particle and A is a constant vector in the horizontal direction. With what minimum speed a particle of mass m be projected so that it continues to move undeflected with a [...]

An empty plastic box of mass m is found to accelerate up at the rate of g/6 when placed deep inside water. How much sand should be put inside the box so that it may accelerate down at the rate of g/6? An empty plastic box of mass m is found to accelerate up at [...]

A lift is moving in upward direction. The total mass of the lift and the passengers is 1600 kg. The variation of the velocity of the lift is as shown in the figure. The tension in the rope at t=8s will be A person standing on the floor of an elevator drops as coin. The [...]

An elevator car whose floor-to-ceiling distance is equal to 2.7m starts ascending with a constant acceleration 1.2m/s2;2.0s after the start a bolt begins falling from the ceiling of the car. An elevator car whose floor-to-ceiling distance is equal to 2.7m starts ascending with a constant acceleration 1.2m/s2;2.0s after the start a bolt begins falling from [...]

A person standing on the floor of an elevator drops as coin. The coin reaches the floor of the elevator in a time t1 if the elevator is stationary and in the t2 if it is moving uniformly. Then A person standing on the floor of an elevator drops as coin. The coin reaches the [...]

A lift is moving down with acceleration a. A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively A man slides down a light rope whose breaking strength η times the [...]

The force exerted by the floor of an elevator on the foot of a person standing there is more than the weight of the person if the elevator is The force exerted by the floor of an elevator on the foot of a person standing there is more than the weight of the person if [...]

In an elevator moving vertically up with an acceleration g, the force exerted on the floor by a passenger of mass M is In an elevator moving vertically up with an acceleration g the force exerted on the floor by a passenger of mass M is September 8, 2020 Category: Cengage NEET by C.P Singh [...]

In the given diagram, with what force must be man pull the rope the hold the plank in position? Weight of the man is 60 kg. Neglect the weights of plank, rope and pulley : In the given diagram rope and pulley : with what force must be man pull the rope the hold the [...]