How much force is needed to stop a 80 kg football player if he decelerates at 5m/s?

1 answer:

4 0

Use Newton's 2nd law of motion.
Here it is:

   Force = (mass) x (acceleration)

   = (80 kg) x (-5 m/s²)

   =    -400 Newtons .

I called the acceleration negative because the player is slowing down.

The force comes out negative because it's in the direction opposite to
his motion.

You might be interested in

Part D

Montano1993 [528]

Answer:

Explanation:

I literally just did this question lol I hope I helped

4 0

3 years ago

Give an example of a physical change and the property associated with that change. Give an example of a chemical change and the

dusya [7]

Answer:

A physical change is an ice cube melting into water. The property is melting point. Another is a banana changing from yellow to brown and the property is color. A chemical change example is a pot or a tool rusting and turning from silver to a reddish-brown. It is also a color change, but it is different because the color changed chemically and not just by looks.

5 0

3 years ago

when a light bulb is turned on electrical energy is transformed into two other types of energy. What are they and support your a

Basile [38]

Answer:

In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).

Explanation:

sana nakatulong)):

4 0

3 years ago

The two vectors 3 and 7 added together

tigry1 [53]

Explanation:

You walk 53m to the north, then you turn 60° to your right and walk another 45m. Determine the direction of your displacement vector. Express your answer as an angle relative to east.

6 0

3 years ago

A bungee cord with a spring constant of 800 stretches 6 meters at its greatest displacement. How much elastic potential energy d

Vinil7 [7]

Elastic potential energy is given by formula

$U = \frac{1}{2} kx^2$