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shtirl [24]
4 years ago
8

A 410-kg piano is being unloaded from a truck by rolling it down a ramp inclined at 25°. There is negligible friction and the ra

mp is 11.0 m long. Two workers slow the rate at which the piano moves by pushing with a combined force of 1300 N parallel to the ramp.If the piano starts from rest, how fast is it moving at the bottom?
Physics
1 answer:
SpyIntel [72]4 years ago
5 0

Answer:BOONK GANG

Explanation:

AHAHAHA I USE CALC LIKE IN CLASS AHAHA

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Why are computer simulations useful in studying phenomena in the universe?
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7 0
3 years ago
A certain frictionless simple pendulum having a length l and mass m swings with period t. If both l and m are doubled, what is t
iVinArrow [24]

If l and m both are doubled then the period becomes √2*T

what is a simple pendulum?

It is the one which can be considered to be a point mass suspended from a string or rod of negligible mass.

A pendulum is a weight suspended from a pivot so that it can swing freely.

Here,

A certain frictionless simple pendulum having a length l and mass m

mass of pendulum = m

length of the pendulum = l

The period of simple pendulum is:

T = 2\pi \sqrt{\frac{l}{g} }

Where k is the constant.

Now the length and mass are doubled,

m' = 2m

l' = 2l

T' = 2\pi \sqrt{\frac{2l}{g} }

T' = \sqrt{2}* 2\pi \sqrt{\frac{l}{g} }

T' = \sqrt{2} * T

Hence,

If l and m both are doubled then the period becomes √2*T

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<u>brainly.com/question/17315536</u>

#SPJ4

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