Question

How much momentum will a dub bell of mass 10kg transfer to the floor if it falls from a height of 80m take its downward acceleration to be 10 metre per second square.​

Answer 1

Answer:

$\huge\mathfrak\red{ANSWER}$

mass of bell is 10kg

height, s=80/100 m = 0.8 m

a = 10m/s

u = 0

Using : v^2 = u^2 + 2as

= 4m/s

Momentum= 10×4 = 40kgm/s

Answer 2

Answer:

400 kg m / sec .

Explanation:

Given :

Mass = 10 kg

Distance ( s )  = 80 m

Acceleration (  a  ) = 10 m / sec ²

We have to calculate momentum :

We have formula :

p = m v

First have to find velocity :

From third equation we have :

v² = u² +  2 a s

v = √ 2 × 10 × 80   [ u = 0 ]

v = √ 1600

v = 40 m / sec

Now momentum :

p = 10 × 40

p = 400 kg m / sec .

Hence we get answer .