Answer:
Explanation:
<u><em>Given:</em></u>
Weight = W = 600 N
Acceleration due to gravity = g = 3.7 m/s²
<u><em>Required:</em></u>
Mass = m = ?
<u><em>Formula:</em></u>
W = mg
<u><em>Solution:</em></u>
For m, it'll be
=> m = W/g
=> m = 600/3.7
=> m = 162.16 kg
Answer:
if the distance between them is halved then gravitational force will be doubled....
Centripetal acceleration is the force acting on the body who's moving in a circular motion. It is still a force, which according to Newton's Second Law of Motion,
F = ma
F = (70 kg)(2)(9.81 m/s²)
F = 1373.4 N
<em>Thus, the answer is B.</em>
Acceleration (magnitude anyway) = (change in speed) / (time for the change) .
Change in speed = (10 - 30) = -20 m/s
Time for the change = 4.0sec
Magnitude of acceleration = -20/4 = <em>-5 m/s² </em>
