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Kaylis [27]
2 years ago
5

Which example best demonstrates how unbalanced forces change the speed of an object's motion?

Physics
1 answer:
exis [7]2 years ago
4 0

I don’t see a picture but unbalanced forces could be two boys pushing with a combined force of 400 Newton’s but the surface of what the box is laying on being 600 meaning since the ground is creating a higher force in the form of friction it will slow the boys down. When forces are unbalanced it means that the object can not be still or moving at a constant speed  when one force is greater by a significant amount the object either slows quickly or accelerates fast depending on which factor is greater.

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The linear momentum of a truck of mass 5000 kg that is moving at a velocity of +30 m/a is ___ kg m/s
miv72 [106K]

Linear momentum of a truck is 1,50,000 kg.m/s

Explanation:

Linear momentum is the product of the mass and velocity of an object. It is a vector quantity, which have a magnitude and a direction.

Linear momentum is a property of an object which is in motion with respect to a reference point (i.e. any object changing its position with respect to the reference point).

It's SI units are kg.m/s

Linear momentum is a vector quantity.

Linear momentum formula (p) = mass × velocity

Given data mass = 5000 kg ; velocity = 30 m/s

P = 5000 × 30

Linear momentum p= 1,50,000 kg.m/s

7 0
3 years ago
Your family took 6 hours to travel to your destination. The average speed for the first time 2 h 15 min was 160 km/h. For the re
Leni [432]

Answer:

3 h 45 min

Explanation:

6 - 2 = 4

4 - .15 = 3 45

Hopefully this helps you :)

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5 0
3 years ago
A ramp that is 8 meters long raises an object 2meters. What is the mechanical advantage
Masteriza [31]
10m long is the right answer or 16
5 0
3 years ago
A lawn roller is rolled across a lawn by a force of 107 N along the direction of the handle, which is 13.5 ◦ above the horizonta
-BARSIC- [3]

Answer:

22.02 m

Explanation:

given,

Force, F = 107 N

angle made with horizontal = 13.5◦

Power develop by the lawn roller = 69.4 W

time = 33 s

distance = ?

Force along horizontal= F cos θ

          = 107 cos 13.5°= 104 N

Power = \dfrac{work\ done}{time}

69.4 = \dfrac{W}{33}

W = 2290.2 J

Work done= Force x displacement

displacement= \dfrac{2290.2}{104}

                      = 22.02 m

6 0
3 years ago
An eagle flies from its perch in a tree to the ground to capture and eat its prey. describe its energy transfromation
ddd [48]
10% energy is transferred from the prey to eagle and 90% energy is lost in the enviorment .
7 0
2 years ago
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