In the following image (attached image), a person slides down a ramp until he reaches the end of it and continues his movement. The ramp has a height, h, but this is decreasing as the person goes down it. The initial velocity of the cart is zero. The height of the ramp is 12 meters. *The mass of the cart was not given. Determine if the following statements are true or false: a)The principle of conservation of energy can be applied. b) The speed of the cart at a height of 6 meters is 15m/s. c)The speed at the end of the ramp is 14m/s.
In the following image (attached image), a person slides down a ramp until he reaches the end of it and continues his movement. The ramp has a height, h, but this is decreasing as the person goes down it. The initial velocity of the cart is zero. The height of the ramp is 12 meters.
*The mass of the cart was not given.
Determine if the following statements are true or false:
a)The principle of conservation of energy can be applied.
b) The speed of the cart at a height of 6 meters is 15m/s.
c)The speed at the end of the ramp is 14m/s.
d)At a height of 6 meters, the kinetic energy is 17.658J.
e)The kinetic energy at the end of the ramp is 5.886J.
f)At a height of 6 meters, the kinetic energy of the cart is 17.658J.
g)The speed at the end of the ramp is the maximum speed the cart can get.
h)At the bottom of the ramp the cart only has kinetic energy.
i)At the top of the ramp the energy that the person and the cart have is the potential energy.
j)If the mass of the cart together with the person is 300kg. The total mechanical energy is 35,316J.
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