Question

Dina has a mass of 50 kilograms and is waiting at the top of a ski slope that’s 5.0 meters high. What is her potential energy

Use PE=MxGxH, G=9.8 m/s2

A) 19.8
B) 245
C)2450
D)64.8

Answer 1

option C

2450

Explanation:

Given in the question that,

mass of Dina = 50kg

height at which Dina is standing = 5m

Formula to calculate potential energy

PE = Mgh

where M = mass of the object

g = acceleration due to gravity = 9.8 m/s²

h = height

Plug values in the formula above

50(9.8)(5)

2450 joules

Answer 2

C

Explanation:

Formula for potential energy is PE = m*g*h

where

m is the mass, in kg

g is the acceleration due to gravity, in meters per second squared, and

h is the height, in meters

The problem gives m = 50, g = 9.8, and h = 5. We plug that into the formula and get out answer. So:

`PE=mgh\\PE=(50)(9.8)(5)\\PE=2450`

Correct answer is C.