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lbvjy [14]
3 years ago
14

a horizontal force of 300 N is needed to push a crate along the floor at constant speed. What is the friction force on the crate

?
Physics
1 answer:
finlep [7]3 years ago
5 0

Answer:

Since a 100-N force is being used to push the crate in one direction, and there is a total net force of 0, the force of friction acting on the crate must also be 100 N. This frictional force points in the direction opposite of the push.

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A force of 35 N acts on a ball for 0.2 s. If the ball is initially at rest:
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To solve this problem we will apply the concepts related to momentum and momentum on a body. Both are equivalent values but can be found through different expressions. The impulse is the product of the Force for time while the momentum is the product between the mass and the velocity. The result of these operations yields equivalent units.

PART A ) The Impulse  can be calculcated as follows

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