A solid disk of radius 5.50 cm and mass 1.25 kg, which is rolling at a speed of 1.50 m/s, begins rolling without slipping up a 10.0° slope. How long will it take for the disk to come to a stop?

Express your answer with the appropriate units.

Question

Physics

Maren David

18 March, 09:41

A solid disk of radius 5.50 cm and mass 1.25 kg, which is rolling at a speed of 1.50 m/s, begins rolling without slipping up a 10.0° slope. How long will it take for the disk to come to a stop?

Express your answer with the appropriate units.

+3

Answers (1)

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Mary Jane · Answer 1

Deceleration of solid disk = g sin10/1 + k²/r² = g sin 10 / 1 + 1/2 = g sin 10 x 2/3

[ k is radius of gyration of disk which is equal to (1/√2) x r ]

deceleration a = - 1.1345 m/s²

v = u - at, t = u / a = 1.5 / 1.1345 = 1.322 s.

A solid disk of radius 5.50 cm and mass 1.25 kg, which is rolling at a speed of 1.50 m/s, begins rolling without slipping up a 10.0° slope. How long will it take for the disk to come to a stop?Express your answer with the appropriate units.

A solid disk of radius 5.50 cm and mass 1.25 kg, which is rolling at a speed of 1.50 m/s, begins rolling without slipping up a 10.0° slope. How long will it take for the disk to come to a stop?

Express your answer with the appropriate units.