18 Answered Questions for the topic Newton

02/17/22

#### Force on the biceps when throwing an object in the air

A waiter holds two plates of food in one hand. His forearmhas a mass of 2.2 kg and the centre of mass of his forearm is located 13 cm from his elbow joint. The centre of mass of the two plates is... more

03/20/21

#### Use Newton’s Method to approximate the positive zero of 2 sin x = x − 2 correctly to six decimal places

Use Newton’s Method to approximate the positive zero of 2sinx = x − 2 correctly to six decimal places
Newton

10/16/19

#### Newton's third law question

A 57.2 kg girl steps out of a 4 kg canoe. In doing so, she pushes the canoe backwards, accelerating the boat at 1.2 m/s/s. Determine the magnitude of the girl's acceleration.

05/03/19

#### Newtons 3. law. IF I use force on something and make it move, why don't I move as well?

This is not a homework question. Just a concept I read from my physics book that I can't get the hang of yet.Newtons 3. law Says for every action there is an equal but opposite reaction. Meaning if... more

11/13/18

#### Use Newton's Method to approximate the smallest positive solution of sin(x) + cos(x)=0

Use Newton's Method to approximate the smallest positive solution of sin(x) + cos(x)=0. Round x values to 5 decimal places.I got x1 = 1 + [sin(1)+cos(1)] / [cos(1) - sin(1)] = 2.7159Is this the... more

05/07/18

#### A satellite orbiting the earth has a speed of 5.5 km/s when its distance from the center of the earth is 11,000 km. Is the satellite in a bound orbit?

A satellite orbiting the earth has a speed of 5.5 km/s when its distance from the center of the earth is 11,000 km. Is the satellite in a bound orbit?   I have already calculated that the... more

02/19/18

#### Mechanics Question - Finding speed reduction time

A car of mass 1000 kg has its speed reduced from 81 km/h to 54 km/h by brakesproducing a force of 1250 N. How long does this take? Determine the work done bythe brakes on the car. Determine... more
Newton Physics

11/07/16

#### physics question

A 16.3kg box is accelerating down a 35° incline. What is the normal force on the box? Give your answer . . .in terms of Newtons. Do not include units in your answer. They will be assumed to be N.to... more
Newton Physics

06/01/16

#### Bathroom Scale: Motion

A 750-Newton man is standing on a bathroom scale in an elevator. When the elevator is moving, the man notices that the scale is reading 780 N. How would you describe the motion of the elevator?

03/17/16

#### The following questions refer to a pop-up toy with a mass of .35 kg. The toy’s spring compresses .04 m and has a spring constant of 4,500 N.

The following questions refer to a pop-up toy with a mass of .35 kg. The toy’s spring compresses .04 m and has a spring constant of 4,500 N.   1. What is the spring potential energy before the... more

03/07/16

#### Solving for Centripetal Force using an Free Body Diagram

Gabriella (75  kg) rides a roller coaster. What is her acceleration at the top of the vertical loop if she feels like her weight is 1200N?   What is Gabriella's acceleration at the... more

01/11/16

8.) A 1500-kg automobile, traveling at 5.0 m/s after braking, strikes a power pole and comes to a full stop in 0.1 s. Calculate the force exerted by the power pole and brakes required to stop the... more

09/18/15

#### A 150 pound person weighs 657 Newtons in the SI System. What is the person's mass?

A 150 pound person weighs 657 Newtons in the SI System. What is the person's mass?

08/22/15

#### newtons law of cooling

You are making pudding for a dinner party, and you put it in the refrigerator at 5 p.m. Your refrigerator maintains a constant temperature of 40 degrees. The pudding will be ready to serve when it... more

04/15/15

does a planet travel faster when it is nearer the sun  or farther from the sun? what is the gravitational attraction between a dating couple sitting 0.152 m apart if the boy weighs 715 N and the... more

04/15/15

#### True or false: Newton's laws apply only to reference frames that are not accelerating.

True or false: Newton's laws apply only to reference frames that are not accelerating.

02/15/14

#### What level of acceleration does gravity give?

I was thinking about gravity and isn't it a meters per second per second per second acceleratory force? I mean, as you get close to an object's center of mass the force of gravity gets stronger,... more

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