Home
Class 12
PHYSICS
A baseball of mass m is thrown upward wi...

A baseball of mass m is thrown upward with some initial speed. If air resistance is neglected, what is the force on the ball: (a) when it reaches half its maximum height, and (b) when it reaches its peak?

Text Solution

Verified by Experts

The only external force on the ball at all points in its trajectory is the downward force of gravity. The magnitude of this force is w = mg. For example, if the mass of the baseball is 0.15 kg, w = 1.47 N.
Promotional Banner

Similar Questions

Explore conceptually related problems

A small ball of mass m is thrown upward with velocity u from the ground. The ball experiences a resistive force mkv^(2) where v is its speed. The maximum height attained by the ball is :

A ball of mass m is thrown upward with a velocity upsilon . If air exerts an average resisting force F, the velocity with which the ball returns to the thrower is

A ball of mass m is thrown vertically up with an initial velocity so as to reach a height h.The correct statement is :

A ball of mass 50 is thrown vertically upwards with an initial velocity of 20 ms^(1) Calculate: (i) in the initial kinetic energy imparted to the ball, (ii) the maximum height reached if air friction is neglected, and (iii) the maximum height reached if 40% of the initial energy is lost against the air friction. Take g=10 ms^(-2)

A ball of mass m inside a smooth spherical shell of radius R with velocity sqrt(2qR) at A What is the direction of force acting on the ball, when it reaches B ?

A ball of mass m is released from A inside a smooth wedge of mass m as shown in figure. What is the speed of the wedge when the ball reaches point B?

An object is thrown vertically upward with a nonzero velocity. If gravity is turned off at the instant the object reaches the maximum height, what happens?

A ball is thrown vertiocally upwards with some speed. It reaches two points A and B one after another such that heights of A and B are one fourth and three-fourth of the maximum height attained. If the total time of flight if T. the maximum time taken by the ball to travel from A and B, is:-

A ball of mass 1 kg is thrown up with an initial speed of 4 m//s . A second ball of mass 2 kg is released from rest from some height as shown in Fig. Choose the correct statement (s).

An object is thrown vertically upward with a speed of 30 m/s. The velocity of the object half-a-second before it reaches the maximum height is