Kinetic energy = (1/2) (mass) (speed)²
Since the 'speed' in the KE formula is squared, if the car's speed
increases by 5 times, its kinetic energy increases by (5²) = 25 times.
The loss of kinetic energy in a skid is just the wo0rk done by friction
between the tires and pavement. So the skid distance is proportional
to the initial kinetic energy, and the car must skid 25 times as far when
it enters the skid at the higher speed.
25 x 30m = 750 meters
Spacecraft will be moving in 1700 m/s.
Option C
<h3><u>Explanation:
</u></h3>
The diameter of the moon is 3500 km and the free fall acceleration at the surface is given as 
The radius will be half of the diameter of the moon that can be written as:
By the application of the equation for orbit speed, we get
Answer:
False
Explanation:
the total distance of a moving body is always positive
Distance is the total distance between any two points
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