Answer:
0.5625 Joules
Explanation:
The equation to calculate kinetic energy is:
So, plug in all given info and calculate:
And that's your answer! :)
The object's velocity is positive and decreasing.
Its acceleration is negative.
Answer:
Velocity is different from speed
Explanation:
Velocity is the speed of something in a given direction.
Speed is how fast something goes in a certain amount of time
Answer:
Part a)
Part b)
So this speed is independent of the mass of the rider
Explanation:
Part a)
By force equation on the rider at the position of the hump we can say
now we will have
now we have
Part b)
At the top of the loop if the minimum speed is required so that it remains in contact so we will have
at minimum speed
So this speed is independent of the mass of the rider