Suppose a car is sitting on a hill 12 meters above the road. the car has a mass of 1,200 kg. the acceleration of the car is 9.8 m/s and the velocity of the car as it begins to roll down the hill is 4.8 m/s. find the mechanical energy for this scenario.

Explanation:

The mechanical Energy associated with a body, is the sum of the potential(Energy due to its position) energy and the kinetic energy(energy due to its motion).Hence ewe can write as

The expression for the potential Energy is

while the expression for the Kinetic Energy is

since the Height,h=12m,

mass,m=1200kg,

acceleration,g =9.8

and velocity,v=4.8m/s

we can compute the Mechanical energy in kJ as

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

answer: option c.

explanation: