Question

Asked Oct 18, 2019

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A 120-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in the figure.

What is the final speed in m/s and it coasts up to the frictionless slope, gaining 0.085 meters in altitude.

Step 1

the conservation of energy is

Step 2

Here, *u* is the initial speed, *v* is the final speed.

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