Question

question 2
a mechanic used a lift to raise a 1,000 kg car 2 m above the floor of the garage.
the car is now at rest on the lift.
how much potential energy does the car have due to the lift?
hint: pe = mgh
mechanics lift
a 4,000 j
b 204.1 j
c 19,600 j

Explanation:

Step1: Identify values

$m = 1000\ kg$, $g= 9.8\ m/s^{2}$, $h = 2\ m$

Step2: Apply potential - energy formula

$PE=mgh=1000\times9.8\times2$
$PE = 19600\ J$

Answer:

C. 19,600 J