Question

a peddle is thrown vertically upwards with a speed of 20 m /s. how high will it be after 2s​

Answer 1

intial vel. (u) = 20

downward acc . = -10

time = 2 sec.

now,.

h = ut - 1/2gt^2

= 20*2-5*2*2

= 40-20

= 20 m...

hope it helps...

follow me..