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2 years ago

A block of weight 5000 N is pushed up a slope by a force of 250 N. Assume there is no friction. Calculate:

1 answer:

7 0

The actual mechanical advantage, the velocity ratio, and the length of the slope if the height of the slope is mathematically given as

A=20
VR=0.05
x=20m

<h3>What are the actual mechanical advantage, the velocity ratio, and the length of the slope if the height of the slope is 10 m?</h3>

Question Parameters:

A block of weight 5000 N is pushed up a slope by a force of 250 N.

Generally, the equation for the actual mechanical advantage is mathematically given as

A=Fout/Fin

A=5000/250

A=20

the velocity ratio is given by the distance moved by the effort divided by the distance moved by the load

Therefore

VR=250/5000

VR=0.05

the length of the slope if the height of the slope is 10 m

Assume the slope is at an angle of 30

Hence

sin 30=10/x

x=20m

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3 years ago

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3 years ago

A pitcher throws a baseball that reaches the catcher in 0.75 s. The ball curves because it is spinning at an average angular vel

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3 years ago

Two resistors, R1=3.85 Ω and R2=6.47 Ω , are connected in series to a battery with an EMF of 24.0 V and negligible internal resi

Bond [772]

Answer:

(a) 2.33 A

(b) 15.075 V

Explanation:

From the question,

The total resistance (Rt) = R1+R2 = 3.85+6.47

R(t) = 10.32 ohms.

Applying ohm's law,

V = IR(t)..........equation 1

Where V = Emf of the battery, I = current flowing through the circuit, R(t) = combined resistance of both resistors.

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I = V/R(t)............. Equation 2

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Substitute these values into equation 2

I = 24/10.32

I = 2.33 A.

Hence the current through R1 = 2.33 A.

V2 = IR2.............. Equation 3

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V2 = 15.075 V

7 0

3 years ago