Question

a body is thrown up with a velocity of 20 m/s . it redards uniformly at the rate of 10 m/s square . find the velocity of the body after 2 second ?

Answer 1

here is ur answer
hope it helps you

Answer 2

a=(v-u)/t

-10=(v-20)/2

-10/5=v-20

-5=v-20

v=-5+20

v=15