Answer:
A. It could be depleted quickly.
Explanation:
It's Non-renewable, meaning it's hard to get back quickly, and using it at a high rate makes it run out well.. quicker.
( 50 km/hr) x (0.05 hr)
= (50 x 0.05) km
= 2.5 km = 2,500 meters
Answer
When a body moves in projectile motion it has two components. One of the components is a horizontal component of the velocity and another is a vertical component.
The velocity along the horizontal component does not change because there is no acceleration long horizontal component.
Whereas velocity along vertical direction keeps on changing because the acceleration due to gravity is acting on the object. At a maximum height of the projectile velocity is equal to zero.
The non-relativistic formula for low speed v < 0.1c is:
K.E = 0.5mv^2 = 0.5 * 235 * (7)^2 = 5757.5 J