Ask question

Ask question

All categories

3 years ago

12

I need help with part D

1 answer:

natka813 [3]3 years ago

8 0

1). The little projectile is affected by friction all the way through the block.
Friction robs some kinetic energy.

2). The block is affected by friction as it scrapes along the top of the post.
Friction robs some kinetic energy.

3). The block is also affected by friction with the air (air resistance) as it
falls to the ground. Friction robs some kinetic energy.

You might be interested in

A box is being pushed but two stellar science students, one on each side of the box. Peter is pushing box with a force of 10 N t

Vitek1552 [10]

Answer:

Josh is the strongest

The net force is 5N towards right

5 0

3 years ago

A force of 85 N is used to push a box along the floor a distance of 15 m. How much work was done?

denpristay [2]

Answer:

1275J

Explanation:

Given parameters:

Force on box = 85N

Distance moved = 15m

Unknown:

Work done = ?

Solution:

Work done is the amount of force applied on a body to move it through a specific distance.

Work done = Force x distance

Now insert the parameters and solve;

Work done = 85 x 15 = 1275J

4 0

3 years ago

Read 2 more answers

The radius of Saturn is about 10 times the radius of Venus and the mass is about 100 times that of Venus. How much larger is the

lora16 [44]

let the mass of Venus is M then mass of Saturn is 100 M

similarly if the radius of Venus is R then the radius of Saturn is 10 R

now the force of gravity on a man of mass "m" at the surface of Venus is given by

$F_1 = \frac{GMm}{R^2}$

now similarly the gravitational force on the man if he is at the surface of Saturn

$F_2 = \frac{G*100M*m}{(10R)^2}$

$F_2 = \frac{GMm}{R^2}$

so here if we divide the two forces

$\frac{F_1}{F_2} = 1$

so here we can say

F1 = F2

so on both planets the gravitational force will be same

7 0

3 years ago

What is the action force of a flying bird?

kirill [66]

It is called the reaction force of a bird flying.

7 0

4 years ago

Where does the kinetic energy come fromwhen you roll down a hill?

Lapatulllka [165]

From the change of GPE into KE. Conservation of energy tells us this.

8 0

4 years ago