Question

Aisha droped and object of mass 4kg from a height of 10m the object hade a speed​

Answer 1

Answer:

14 m/s

Explanation:

potential energy

= mgh

= 4 x 9.8 x 10

= 392 Joules

now,

$= > \frac{1}{2} m {v}^{2} = 392 \\ \\ = > \frac{1}{2} \times 4 \times {v}^{2} = 392 \\ \\ = > {v}^{2} = 196 \\ \\ = > v = \sqrt{196} \\ \\ = > v = 14 \: m {s}^{ - 1}$