All categories

3 years ago

Calculate how much work you need to move a 280 N shed to a platform 5 m above.

1 answer:

6 0

Work is done when a motion resulted from the force being done by an object. The amount of work done is calculated by multiplying the force applied and the distance traveled. It is calculated as follows:

Work = Force x distance = 280 N x 5 m = 1400 J.

You might be interested in

PLEASE HELPPP IT DUES IN 30 minutes

Nuetrik [128]

Answer:

140m

70sec I cant show my work but I gave you a push

Explanation:

Brainliest?

6 0

2 years ago

A ball is dropped from a height of 180m- Calculate the velocity of the ball when it strikes the ground

gayaneshka [121]

Answer:

6s , 60mls

Explanation:

hope this helps love

6 0

2 years ago

Read 2 more answers

If the law of conversation of momentum is true,then how does the total momentum before a collision compare to the total momentum

Oxana [17]

<h2>Answer:The total momentum before collision is equal to the total momentum after collision.</h2>

Explanation:

Conservation of momentum states that whenever no external force is acting on a system,the total momentum is constant.

When we consider collisions,take the system as the two bodies that are colliding.

There are no external forces acting on the system.The forces that one body exerts on other come under internal forces.

So,momentum can be conserved in this case.

So,the total momentum before collision is equal to the total momentum after collision.

4 0

2 years ago

Which statements about Earth’s core help explain Earth’s magnetic field? Select three options.

Evgen [1.6K]

Answer: B,E,F

Explanation:

(B) the inner core is solid. (E) the outer core is liquid and moving. (F) Earth's core is composed of iron and nickel

5 0

2 years ago

Read 2 more answers

In Alamogordo, New Mexico, falling rocks are a hazard along US Highway 82. If a rock falls from a cliff with 157 N of force,what

jeka94

Answer:

Mass, m = 16.02kg

Explanation:

Given the following data;

Force, F = 157N

Since it's a free fall, acceleration, a = g = 9.8m/s² (acceleration due to gravity).

To find the mass;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

$F = ma$

Where;

F represents force measured in Newton.

m represents the mass of an object measured in kilograms.

a represents acceleration measured in meter per seconds square.

<em>Making mass (m) the subject of formula, we have;</em>

$Mass (m) = \frac{F}{a}$

<em>Substituting into the equation;</em>

$Mass (m) = \frac{157}{9.8}$

Mass, m = 16.02kg

<em>Therefore, the mass of the rock is 16.02kg.</em>

5 0

2 years ago