Question

what is the potential energy of a 25 kg bicycle resting at the top of a hill 3 m high? (formula: pe = mgh)
○ 75 j
○ 735 j
○ 245 j
○ 37.8 j

Explanation:

Step1: Identify given values

Mass \( m = 25\space kg \), height \( h = 3\space m \), gravitational acceleration \( g = 9.8\space m/s^2 \) (standard value).

Step2: Apply potential energy formula

Using \( PE = mgh \), substitute the values:
\( PE = 25\times9.8\times3 \)
First, calculate \( 25\times9.8 = 245 \), then \( 245\times3 = 735 \).

Answer:

735 J (corresponding to the option "735 J")