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Murljashka [212]
3 years ago
8

According to the impulse--momentum equation Ft = change in mv, a bungee jumper in fall has momentum which is reduced by the forc

e F exerted by the bugle cord. If m is the mass of the jumper, then v in the equation is the speed of thea. Jumper
b. Cord
c. Both
d. None
Physics
1 answer:
Dima020 [189]3 years ago
6 0

Answer:

The answer is a. Jumper

Explanation:

The change in the momentum is represented by the equation

Ft=m*v

Acceleration of any body is calculated by the product of the mass of the body and with the velocity the same mass is moving.

Since it is mentioned in the statement that m is the mass of the jumper then velocity will also be of the jumper to calculate the change in the momentum.

If the mass of bugle cord is taken, then its velocity will be taken for the equation.

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I'd say a from opinion but its answer is d

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3 years ago
Calculate the normal force pushing up from the table in each example 8 kg
garik1379 [7]

The correct answer to the question is: 78.4 N.

EXPLANATION:

As per the question, the mass of the object is given as m = 8 Kg.

We are asked to calculate the normal force of the object.

The object is resting on the table.

Hence, the object pushes the table downward with a force equal to it's weight.

The table, in turn, pushes the object with the same force as given by the object, but in the upward direction.

The force given by the table on the object is known as the normal reaction of the object which acts perpendicular to the surface of the object.

Hence, the normal reaction is equal to the weight of the body.

The weight of a body is the product of it's mass with acceleration due to gravity.

So, the weight of 8 Kg object is calculated as -

Weight = mg

= 8 × 9.8 N.

= 78.4 N.

Here, g is known as acceleration due to gravity.

Hence, the normal force pushing up from the table is 78.4 N.







8 0
3 years ago
Ground-based radio telescopes can collect data from distant objects in space
Butoxors [25]

Answer:

A.  during the day or night and in any weather conditions.

Explanation:

Ground-based radio telescopes can be used to collect data from distant objects in space during the day or night in any weather condition.

They do not depend or are they affected by weather and they pass well through them.

  • Telescopes are devices used to obtain information about distant bodies usually astronomical in nature.
  • Optical telescopes use the visible range of light and they are overwhelmed by the sun during the day.
  • Bad weather conditions can also diminish the reception of light.
  • They work best at night.
  • Radio telescopes uses electromagnetic radiations and can work at any time and during any weather.
6 0
3 years ago
An arrow of mass 0.5kg so it has 25J of kinetic energy; find the speed of the arrow v = m/s​
miss Akunina [59]

Answer:

10 m/s

Explanation:

Use the kinetic energy formula:

KE=(1/2)mv^2

I always remember it as Kevin is half-mad, and very square.

25J = (1/2)*0.5kg*(v^2)

50J = 0.5kg*(v^2)

100J = v^2

v = 10 m/s

Check it:

KE = (1/2)*0.5*(10^2)

KE = 25J

yep, it's right!

4 0
3 years ago
Both cars start from the same point. Which describes the motion shown?
evablogger [386]
Is there a graph we can look at?
4 0
4 years ago
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