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3 years ago

SOS Two forces, one 5 N and the other 8 N, act on a single object. Which of the

Physics

1 answer:

Daniel [21]3 years ago

4 0

If the two forces act in the same direction, their resultant is 13N .

If they act in opposite directions, their resultant is 3N .

These are the limits. The resultant is always between 3N and 13N.

So (B), (C), and (D) (3N, 10N, and 13N are possible.)

(A) 2N is not possible.

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How can you find the net force if two forces act in opposite directions?

Tresset [83]

Then the magnitude of the net force is the difference between the two forces,
and its direction is the same as the direction of the greater one.

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After the collision, car 1 has a final velocity of 6m/s south. What is the final velocity of car2?

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A load of mass 5kg is raised through a height of 2m. (g=10mls)

s2008m [1.1K]

The gain in gravitational potential energy of the mass = 100 kg m^2 / s^2.

Explanation:

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3 years ago

When energy decreases, particle motion: A. stops B. increases C. decreases

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C. decreases here you go

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3 years ago

Read 2 more answers

A 2kg box is pushed along a flat frictionless surface with an applied force of 53.91newton j+19.62 j were j is horizontal and j

tamaranim1 [39]

Since the box doesn't move vertically at all, no work is done by the vertical component of the force.

If 53.91 Newtons is the horizontal component of the force (very unclear in the question), then the work done is

Work = (force) x (distance)

Work = (53.91 N) x (10 m)

Work = 539.1 Joules

Power = (work done) / (time to do the work)

Power = (539.1 joules) / (90 sec)

Power = (539.1/90) (joule/sec)

Power = 5.99 watts

=====================================

Note: If the mass of the box is only 2 kg, and you push it along the surface with a constant force of 53⁺ Newtons, and the surface really is frictionless, then that box is gonna cover a WHOOOOOLE LOT more than 10 meters in 90 seconds. I get 109,168 meters !

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4 years ago