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vredina [299]
3 years ago
15

A bulldozer pushes on a boulder with a force of 600 N. It accelerates at 3 m/s. Find mass.​

Physics
1 answer:
MrRissso [65]3 years ago
5 0

Answer:

Formula for mass: m=f/a

m=600/3

The mass is 200.

Explanation:

Hope this helps!

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a) 4 forces

b) 186 N

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Explanation:

a)

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b)

Here we can find the net force on the bicyclist by using Newton's second law of motion, which states that the net force acting on a body is equal to the product between the mass of the body and its acceleration:

F_{net}=ma

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F_{net} is the net force

m is the mass of the body

a is its acceleration

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m = 60 kg is the mass of the bicyclist

a=3.1 m/s^2 is its acceleration

Substituting, we find the net force on the bicyclist:

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c)

We can write the net force acting on the bicyclist in the horizontal direction as the resultant of the two forces acting along this direction, so:

F_{net}=F_a-R

where:

F_{net} is the net force

F_a is the applied force (forward)

R is the air drag (backward)

In this problem we have:

F_{net}=186 N is the net force (found in part b)

R=60 N is the magnitude of the air drag

Solving for F_a, we find the force produced by the bicyclist while pedaling:

F_a=F_{net}+R=186+60=246 N

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