Question

Athan has a bowling ball that has a mass of 3.5 kg find it's change in momentum if it changes in speed from 20m/s to 36m/s

Answer 1

Provided that:

• Initial velocity = 20 m/s
• Final velocity = 36 m/s
• Mass = 3.5 kg

To calculate:

• Change in momentum

Solution:

• Change in momentum = 56 kg m/s

Required solution:

~ Firstly let us calculate the initial momentum in given case!

→ p = mu

→ p = 3.5 × 20

→ p = 70 kg m/s

~ Now let us calculate the final momentum in given case!

→ p′ = mv

→ p′ = 3.5 × 36

→ p′ = 126 kg m/s

~ Now let us calculate change in momentum!

→ ∆p = p′ - p

→ ∆p = 126 - 70

→ ∆p = 56 kg m/s

• Therefore, 56 kg m/s is the change in momentum!