with the aid of diagrams, explain how principle of conservation of mechanical energy applies in an apple that falls from a tree
1 answer:
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Answer:
264.7 m
Explanation:
The net force felt by the car travelling along the slope is equal to the component of the weight parallel to the slope, so:
where
m is the mass of the car
g = 9.8 m/s^2 is the acceleration of gravity
and the negative sign is due to the fact the force is opposite direction to the motion of the car
The acceleration of the car is therefore:
Now we can find how far the car went up the hill by using the equation:
where
v = 0 is the final velocity of the car
u = 30 m/s is the initial velocity
g = -1.7 m/s^2 is the acceleration
d is the distance covered
Solving for d,