Question

The next few questions challenge you to figure out the acceleration due to gravity ( g ) on various hypothetical alien planets. On MArs, you drop a stone from rest, 91.4 m above the ground, and the stone hits the ground 6.93 s later. What is the value of g on Mars?

Answer 1

Here,

let the value of g is g

Using second equation of motion

as displacement = u * t + 0.50 * g * t^2

t is the time of falling

91.4 = 0.50 *g * 6.93^2

g = 3.81 m/s^2

the value of g at Mars is 3.81 m/s^2