Question

a boy throws a ball vertically upward and catches back in 10s calculate the velocity with which it was thrown up

Answer 1

Answer:

which standard please tell me

Answer 2

Explanation:

Given, ● v = 0 m/s

| |

t = 10 seconds | |

__^_______ u = ?

We can take acceleration = 10 m/s^2

Put first equation of motion,

v = u + at

here, v = 0 ms^-1

t = 10 seconds

a = 10 m/s^2

•

• • 0 = u + 10 × 10

0 = u + 100

-100 m/s = u

Hope this helped you...