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7.Explain. To train for conditions during a manned mission on the surface of Mars, where the acceleration due to gravity is ...

tion due to gravity is only 3.72 m/s2 , astronaut can be hung on a spring harness while on Earth. To provide the necessary force, we can stretch a stiff (large
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8.the girl on the sled, weighing 50 lb, leaves point A from rest and goes down a 2% icy slope ...

no friction). She collides with her friend, weighing 60 lb, at point B, 140 feet down the slope. After colliding, they travel together down the slope on the sled. The slope is maintained, but the ice is a little rougher, with a coefficient of friction of μk = 0.20. a) How fast will they be moving immediately after they collide? b) Will they come to a stop after the collision? If so, how far will they travel until they do? If not, what will their acceleration be?
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Frequently Asked Questions

 

 

What is the equation for static friction?

 

The force that keeps object at rest is known as static friction. It is equal to the product of normal force and coefficient of static friction.
Equation for static friction = Normal force Coefficient of static friction

 

 

What is the formula of static friction?

 

Formula: Fs N μs
Where N is normal force and sis coefficient of static friction

 

 

How do you solve for static frictional force?

 

Static frictional force can be calculated by using normal force and coefficient of static friction.
        Fs=N μs
Let Normal force = 50 N
Coefficient of static friction μs= 0.2
Plugging value of N and μs in the formula we get static frictional force.
Fs=N μs
  = 500.2
  =10 N
In this way we have solved for static frictional force.

 

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