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exis [7]
3 years ago
6

A 588 mother sits on one side of a seesaw, 2.20m away from the pivot. one of her two children sits 2.00m from the pivot on the o

ther side of the seesaw. If the force of gravity on her is 256N, where must the other child sit to balance the seesaw if the force of gravity on him is 412 N ?
Physics
1 answer:
erastovalidia [21]3 years ago
3 0
Using momentum balance:

The 588 N mother is on the other side of the seesaw, 2.20m away from the pivot

F1 = 588 N
x1 = 2.20 m

Two of her children sat on the other side:

F2 = 256 N
x2 = 2.00 m

F3 = 412 N
x3 = unknown

F1x1 = F2x2 + F3x3

Solve for x3:

588 * 2.2 = 256 * 2 + 412 * x3

x3 =  1.90 meters away from pivot
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Explanation:

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A car traveling at 60 mph has how much more energy than a car going at 15 mph?
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Answer:

No, if a car is going faster. The RPM is obviously higher. If that is higher, you can burn through gas and energy much faster. A car going at 15mph would be cruising and wouldn't have to worry too much about burning our your vehicle.

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The distance recorded for riding a motorcycle on its rear wheel without stopping is more than 320 km! Suppose the rider in this
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Answer:

<h3>14.97m/s</h3>

Explanation:

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Acceleration a = 2m/s²

Required

rider's velocity after the acceleration v

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v² = u²+2as

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Friends Burt and Ernie stand at opposite ends of a uniform log that is floating in a lake. The log is 3.0 m long and has mass 20
Taya2010 [7]

Answer:

The distance the log has moved by the time Ernie reaches Bur is 1.33 m.

Explanation:

give information:

The log is 3.0 m long and has mass 20.0 kg.

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Ernie has mass 40.0 kg.

to find the distance, first, we have to calculate the center of mass

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5 0
3 years ago
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