A person drops a coin. Describe the path of the coin as seen by the person if he is in a. a car moving at constant velocity and b. in a freelyfalling elevator.

A person sitting in an open car moving at constant velocity throws a ball vertically up into air. The ball falls

A boy on a train of height h_1 projects a coin his friend of height h_2 standing on the same train, with a velocity v relative to the train, at an angle theta with horizontal. If the train moves with a constant velocity v' in the direction of x - motion of the coin, find the (a) distance between the boys so that the second boy can catch the coin, (b) maximum height attained by the coin, and ( c) speed with which the second boy catches the coin relative to himself (train) and ground.

An elevator of mass M with a person of mass m is moving upward with uniform velocity vecv . What is the power delivered by the elevator?

A person, sitting in a car, tries to move the car by applying force to its walls. Will the car move? Explain in detail.

A person standing oin the floor of an elevator drops as coin. The coin reaches the floor of the elevator in a time t_1 if the elevator is stationary and in the t_2 if it is moving uniformly. Then

A body is dropped from a plane moving with constant horizontal velociy. The path of the body as seen by a person on the plane will be

A person observes a change of 2.5 % in frequency of sound of horn of a car. If the car is approaching forward the person & sound velocity is 320 m/s, then velocity of car in m/s will be approximaterly :-

The number of ways in which 20 identical coins be distributed in 4 persons if each person receive at least 2 coins and atmost 5 coins, are

A train in standing on a platform, a man inside a compartment of a train drops a stone. At the same instant train starts to move with constant acceleration. The path of the particle as seen by the person who drops the stone is: