G.P.E = mgh
Weight = mg = 200N
So G.P.E = 200 * 2 = 400 Joules
Explanation:
When a car is breaking, the brakes apply pressure/force onto the wheels(car) which allows it to slow down.
When the car collides with an object, it is exerting a force upon that object to which it applies an equal and opposite force on the car.
I think this is what you are asking for.
Hope This Helps :)
False, when wavelength waves increases the frequency will decreases.
