Question

Find the mass of a person walking west at a speed of 0.8 m/s with a momentum of 52.0 kg.m/s west.

Answer 1

mass of the person walking to west is 65 kg.

Given:

Momentum = 52
`(kg m)/(s)`

Speed = 0.8
`(m)/(s)`

To find:

Mass of the person = ?

Formula used:

Momentum is given by,

P = m × v

Where, P = momentum

m = mass

v = speed

Solution:

Momentum is given by,

P = m × v

Where, P = momentum

m = mass

v = speed

Mass =
`(P)/(v)`

m =
`(52)/(0.8)`

m = 65 kg

Thus, mass of the person walking to west is 65 kg.