Part A A 62 g ice cube can slide without friction up and down a 30 slope. The ic

Question

Part A

A 62 g ice cube can slide without friction up and down a 30 slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 20 N/m . When the ice cube is released, what total distance will it travel up the slope before reversing direction?

Express your answer to two significant figures and include the appropriate units.

Part B

The ice cube is replaced by a 62 g plastic cube whose coefficient of kinetic friction is 0.20. How far will the plastic cube travel up the slope?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

apply the law of conserving of energy

mgl*sin26 = .5*26*0.1^2

where m is mass

g is accleration due to graity

so

0.062* 9.8*l*sin 30 = 0.5*20*0.1^2

so, l= 0.329 m

----------------------------------------------

apply the law of conserving of energy

mgl*sin26 = .5*26*0.1^2

where m is mass

g is accleration due to graity

so

0.062* 9.8*l*sin 30 = 0.2* 0.5*20*0.1^2

so, l= 0.065 m

------------------

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.