Work is in units of Jules, so any comparison with time is incorrect. Answer D is the definition for velocity, which is incorrect. Answer C is the correct answer
3.33 seconds.
<u>Explanation:</u>
We can find the speed of the body using the formula,
Speed = Distance traveled in meters / time taken in seconds
= 450 m / 30 seconds
= 15 m/s
So per second the distance traveled by the body is 15 m.
So time needed to travel 50 m can be found as,
time = distance/speed
= 50 m / 15 m /s
= 3.33 s
Answer:
152,155 J
Explanation:
115,333 + 36,822 = 152,155J