A body is dropped from a height of 320m The acceleration due to gravity is 10m/s^2 (a) How - Science - Motion

Question

A body is dropped from a height of 320m The acceleration due to
gravity is 10m/s^2?
(a) How long does it take to reach the ground?
(b) What is the velocity with which it will strike the ground?

Jyoti Pant · Accepted Answer

Given,
h=320 mg=10 m/s2u=0Using, v2-u2=2ghor v2-0=2×10×320=6400or v=80 m/sThis is the velocity with which the body will strike the ground
Again,v=u+gtor t=v-ug=80-010=8 secThus, (i) 8 sec(ii) 80 m/s

A body is dropped from a height of 320m. The acceleration due to gravity is 10m/s^2? (a) How long does it take to reach the ground? (b) What is the velocity with which it will strike the ground?

A body is dropped from a height of 320m. The acceleration due to gravity is 10m/s^2?
(a) How long does it take to reach the ground?
(b) What is the velocity with which it will strike the ground?