Question

A 150.0 kg cart rides down a set of tracks on four solid steel wheels, each with radius 20.0 cm and mass 45.0 kg. The tracks slope downward at an angle of 25 ∘∘ to the horizontal. If the cart is released from rest a distance of 28.0 mm from the bottom of the track (measured along the slope), how fast will it be moving when it reaches the bottom? Assume that the wheels roll without slipping and that there is no energy loss due to friction.

Express your answer in meters per second to two significant figures.

Answer #1

A 150.0 kg cart rides down a set of tracks on four solid steel
wheels, each with radius 20.0 cm and mass 45.0 kg. The tracks slope
downward at an angle of 17 ∘ to the horizontal. If the cart is
released from rest a distance of 12.5 m from the bottom of the
track (measured along the slope), how fast will it be moving when
it reaches the bottom? Assume that the wheels roll without
slipping, and that there...

ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

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