Mention the path of an object which is dropped outside through the window of a moving vehicle. Why is it so ?

Explain the path taken by a drop of blood through various chambers of heart.

A small object of mass 'm' is moved over a rough, curved surface as shown. The force which moves it along the dotted path shown is always tangential to the curved path. If the object moves with negligible speed, find the work done by the force F in moving it from A to B. The coefficient of friction between the object and the curved surface is mu.

Passenger of a train just drops a stone from it. The train was moving with constant velocity. What is path of the stone as observed by (a) the passenger itself, (b) a man standing on ground?

Give the magnitude and direction of the force acting on a stone of mass 0.1 kg (a) just after it is dropped from the window of a stationary train (b) just after it is dropped from the window of a train running at a constant velocity of 36 km//hr (c) just after it is dropped from the window of a train accelerating with 1 ms^(-2) (d) lying on the floor of a train which is accelerating with 1 ms^(-2) the stone being at rest relative to the train . Neglect the resistance of air throughout .

A stone is just dropped from the window of a train moving along a horizontal straight track with uniform speed. The path of the stone is

A vehicle of mass 20kg is moving with a velocity of 4 ms^(-1) . Find the magnitude of the force that is to be applied on the vehicle so that the vehicle have a velocity of 1 ms^(-1) after travelling a distance of 20m.

A ball is dropped by a passenger from the window of a train moving with uniform velocity. The ball will reach the ground following a

According to the third law of motion, when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move.

An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path object lie on the same horizontal line. What is the work done by the force of gravity on the object ?

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.