Question

How much momentum will a dump bell of mass 10 kg transfer to the floor if it falls from a height of 80 cm? take its downward acceleration to be 10 m/s?​

Answer 1

Answer:

Explanation:

Given:

m=10kg

h=80cm=0.8m

g=10m/s2

To find: momentum

Formula Used:

1. $2as=v^{2}-u^{2}$

2. p=mv

Solution:

Since the mass is dropped from a height, its initial velocity u is taken to be 0

therefore,

$2ah=v^{2}$

2(10)(0.8)=$v^{2}$

16=$v^{2}$

v=4m/s

p=10(4)

p=40kgm/s