Question

5. A hiker accidentally drops an apple from a cliff. She observes that it hits the ground below after 2.4 s. If the apple accelerated at 10 m/s (gravity) while falling, how high was the

cliff?
cliff height -
וח
"Round your answer to the nearest thousandth if necessary,

Answer 1

28.8m

Step-by-step explanation:

Given parameters:

Time of fall = 2.4s

Acceleration due to gravity = 10m/s²

Unknown:

Height of cliff = ?

Solution:

To solve this problem, we use the expression:

H = ut +
`(1)/(2)`gt²

u is the initial velocity

t is the time taken

g is the acceleration

t is the time

H = 0x2.4 +
`(1)/(2)` x 10x2.4² = 28.8m