Question

A man throws a ball of mass 0.4 kg vertically upwards with a velocity of 15m/s . what will be its initial momentum?​

Answer 1

Explanation:

Mass of ball m=0.4 kg.

Initial velcotiy of ball u=10 m/s.

Initial momentum of the ball will be given as, Pi mu=0.4×10=4 kg m/s.

At the highest point, velocity of ball is zero.

So momentum of the ball Pf=0.4x0=0.

Answer 2

$\large \maltese \: \underbrace{ \pmb{ \sf \purple{Answer : - }}}$

・ 6 kg.m/s

$\large \maltese \: \underbrace{ \pmb{ \sf \purple{Solution : - }}}$

We are are given that A ball of mass 0.4 kg is thrown at a velocity of 15m/s (initial velocity) and we're asked to find tha value of initial momentum.

Momentum of an object is calculated by multiplying the mass of the object and it's velocity.

To find initial momentum, mass will be multipled with the initial velocity.

$\\ \leadsto \large\underline{ \boxed{ \sf \rho = mass \times velocity}} \bigstar$

Substitute the given values in the formula!!

$\\:\implies\sf initial\: momentum = mass \times initial \: velocity$

$\\:\implies\sf initial \:momentum = 0.4 \times 15$

$\\ : \implies\underline{{\boxed{ \sf \orange{initial \: momentum = 6 kg.m/s }}}} \bigstar$

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