Question

1 kg mass has kinetic energy of 1 joule

Answer 1

Answer:

● When it's speed is 1.4m/s

=> $K.E = 1/2 m {v}^2$

=> $1 = 1/2 × 1 × {v}^2$

=> $2 = {v}^2$

=> ${v}^2 = 2$

=> $v = √2$

or

=> $1.4m/s$