MA = Fwithout help/Fwith machine
MA = 1600/320 = 5
The acceleration is 
Explanation:
We can answer this question by using Newton's second law, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

where
F is the force
m is the mass
a is the acceleration
In this problem, we have
m = 25 kg is the mass of the rider+bicycle
F = 400 N is the force
Solving for a, we find the acceleration:

Learn more about Newton's second law:
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Answer:
9.4 N
Explanation:
m = mass of the book = 1.83 kg
= Coefficient of static friction = 0.522
= Coefficient of kinetic friction = 0.283
= Static frictional force
F = force needed to make the book move
force needed to make the book move is same as the magnitude of maximum static frictional force applied by the desk on the book
Static frictional force is given as
=
mg
Hence, the force need to move the book is given as
F =
=
mg
F =
mg
F = (0.522) (1.83 x 9.8)
F = 9.4 N
<span><span>Your friend is bragging about his motorcycle. He claims that it can go from a stopped position to 50 miles per hour in three seconds. He is describing the motorcycle's
</span>Answer: </span>acceleration
Hope This Helps! :3
Answer:
The water acts like a lubricant therefore has a smooth motion over the ice.