Question

A physicist drops astone off the top of cliff over looking a lake. She hears the splash 4 second after releasing the stone?

Answer 1

Height of cliff(h) = 80 meter (Approx)

Step-by-step explanation:

Given:

Time taken t = 4 sec

Gravitational acceleration = 10 m/s (Approx)

Find:

Height of cliff(h)

Computation:

h = ut + 1/2(g)(t)²

Height of cliff(h) = (0)(4) + 1/2(10)(4)²

Height of cliff(h) = 80 meter (Approx)