A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s.

(i) What will be its initial momentum?
(ii) What would be its momentum at the highest point of its flight?

Open in App

Solution

(i) We know that:
Momentum = mass × velocity
= m × v
Here, mass, m = 500 g
We can convert grams (g) to kilograms (kg). A kilogram has 1000 grams.
m = 500 / 1000
m = 0.5 kg
Also, velocity, v =10 m/s
Putting these values in the above formula, we get:
Momentum = 0.5 × 10 = 5 kg.m/s

(ii) Its momentum at the highest point of its flight would be zero. At the maximum height the velocity of the ball is zero.

Suggest Corrections

Similar questions

A man throws a ball weighing 200 g vertically upwards with a speed of 10m/s. Its momentum at the highest point of its flight will be:

Q. A ball is projected vertically upwards with kinetic energy

E

. The kinetic energy of the ball at the highest point of its flight will be:

Q. A ball is thrown vertically upwards with speed 10 m/s and it comes back at initial point with same speed. At what point during flight is the ball's acceleration greatest ?

Q. A body throws balls vertically upwards. He throws one, while the previous one is at its highest point. Maximum height reached by a ball if he throws one ball each per second at uniform speed is

A player throws a ball upwards with an initial speed of 29.4 m s^–1.

(a) What is the direction of acceleration during the upward motion of the ball?

(b) What are the velocity and acceleration of the ball at the highest point of its motion?

(c) Choose the x = 0 m and t = 0 s to be the location and time of the ball at its highest point, vertically downward direction to be the positive direction of x-axis, and give the signs of position, velocity and acceleration of the ball during its upward, and downward motion.

(d) To what height does the ball rise and after how long does the ball return to the player’s hands? (Take g = 9.8 m s^–2 and neglect air resistance).

Join BYJU'S Learning Program

A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s. (i) What will be its initial momentum? (ii) What would be its momentum at the highest point of its flight?

A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s.

(i) What will be its initial momentum?
(ii) What would be its momentum at the highest point of its flight?