A hollow spherical shell with mass 2.00 kg rolls without slipping down a 38.0 de

Question

A hollow spherical shell with mass 2.00 kg rolls without slipping down a 38.0 degree slope.

Part A -
Find the acceleration of the shell.
a =3.62 m/s^
Correct


Part B
Find the friction force on it.
F =4.83 N
Correct


Part C --HELP!
Is the friction kinetic or static friction?

(a) kinetic
(b) static

help!!

submitshow answer

Part D -
If the mass were doubled to 4.00 kg, find the acceleration of the shell.
a =3.62 m/s^2
Correct


Part E
If the mass were doubled to 4.00 kg, find the friction force on it.
F =9.65 N
Correct

Explanation / Answer

Part C -- static friction rolling substances only have static friction

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