Answer:
C
Explanation:
C. Curved lines or straight lines
KE = 8887.5 J
<h3>Further explanation</h3>
Given
speed = 15 m/s
weight = 79 kg
Required
KE-Kinetic energy
Solution
Energy is the ability to do work
Energy because its motion is expressed as Kinetic energy (KE) which can be formulated as:

Input the value :
KE = 1/2 x 79 kg x 15² m/s²
KE = 8887.5 J
Answer:
F = 120 N
Explanation:
Force x distance = energy
The bike has energy 1/2 . 80 . 6^2 = 1440 J
You are looking at an example of not reading the question properly.
Impulse = Force . time = change in momentum
F . 4 = 80 .6
F = 120 N
Voltage (V)= Current (I) * Resistance (R)
I=V/R=140/2=70A
Hope this helps!