Question

20 point
plz answer fast​

Answer 1

Answer:

2tantheta

Explanation:

The acceleration of the block while it is sliding down the upper half of the inclined plane is gsinθ.

If μ is the coefficient of kinetic friction between the block and the lower half of the plane,the retardation of the block while it is sliding down the lower half = −(gsinθ−μcosθ)

For the block to come to rest at the bottom of the inclined plane,the acceleration in the first half must be equal to the retardation in the second half,i.e.

gsinθ=−(gsinθ−μgcosθ)

μcosθ=2sinθ

μ=2tanθ

Hence the correct answer is μ=2tanθ

Answer 2

Answer:

xnxnxm the following terms and conditions necessary in the process of the to be a great day the righujsdndjdjdjfifjf did Ashoka the great granary square feet and the great granary square feet and the storm is nott of waste of time to explore and biological

jrjrjdjdie and y y la la la la Jolla California State polytechnic institute of technology and