3 years ago

How much work is done when a 5 N force moves a block 4 m

Physics

1 answer:

defon3 years ago

4 0

20N•m or 20J. Work is equal to force•distance, and 5N•4m is 20N•m, or J

You might be interested in

La masa de un objeto en la tierra es de 100 kg.

andreev551 [17]

Answer:

a) 980 N

b) 100 kg

c) 163.33 N

Explanation:

The weight of the object on Earth is the product of its mass times the acceleration due to gravity, that is:

$W=m\,g=(100\,\,kg)\,g=(100\,\,kg)\,(9.8\,\,m/s^2)=980\,\,N$

The mass of the object on the moon, is exactly the same (100 kg) since mass is an inherited value of the object.

Considering that the acceleration of gravity on the Moon is about 1/6 that we have on earth (g), then the weight of the object on the Moon becomes:

$W=m\,\frac{g}{6} =\frac{980}{6}\,\,N=163.33\,\,N$

3 0

3 years ago

Which of these statements is correct about Newton's law on gravity?

Diano4ka-milaya [45]

Newton's law of gravity does not explain WHY objects exert gravitational force.

7 0

3 years ago

As the car falls off the cliff, what is happening to the kinetic energy of the falling car?

Airida [17]

Answer:

The kinetic energy is increasing as potential energy is converted.

Explanation:

7 0

3 years ago

Please help me pwease

Alisiya [41]

Answer:

Iron

Explanation: It is by mass the most common element on Earth, right in front of oxygen, forming much of Earth's outer and inner core.

6 0

2 years ago

A cyclist travels at 15 m/s during a sprint finish. What is this speed in km/h

g100num [7]

Answer:

54 km/hr

Explanation:

m/s to km/hr => 18/5

15 m/s to km/hr => 15 x 18/5 =>3 x 18 => 54km/hr

8 0

3 years ago