Question

If the kinetic energy of a ball moving at velocity of 20mlssquare is 500j what is the mass of the balls with solving and examples this is my question about my assignment

Answer 1

$kinetic \: \: energy \: = 0.5m {v}^{2}$

$500 = 0.5 \times m \times {20}^{2}$

$1000 = m \times {20}^{2}$

$m = 1000 \div {20}^{2}$

$m = 1000 \div 400$

$m = 2.5kg$

Answer 2

Answer:

m= 2.5 kg .....

Pihu ❤️ Sam