### How much work was done by friction on megan

Assignment Help Physics
##### Reference no: EM138759

Q1. Megan's mass is 30 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 m/s at the bottom of the slide. How much work was done by friction on Megan? Imagine that air resistance is negligible.

Q2. Two horizontal forces, 249 N and 165 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to point to the direction of the net force.

#### Questions Cloud

 What would happen to the frequency, speed and wavelength : An automobile club plans to race a 780 kg car at the local racetrack. The car needs to be able to travel around several 170 m radius curves at 85 km/h. What must the banking angle of the curves be so that the force of the pavement on the tires of the.. Conclude the maximum height the frisbee : One side of the roof of a building slopes up at 34.0°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up incline. The coefficient of kinetic friction between plastic and roof is .. What is the acceleration throughout this period : A 370-kg sailboat has an acceleration of 0.87 m/s2 at an angle of 64° north of east. Find the magnitude and direction of the net force that acts on the sailboat. Constant speed that characterizes middle portion of motion : Charge is scattered uniformly throughout a long cylindrical shell of inner radius R and out radius 2R. At what radius is the electric field equal to one-half the value on the outer surface. How much work was done by friction on megan : Two horizontal forces, 249 N and 165 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to point to the direction of the net force. How much does it have to increase its speed : A Ferris wheel is a vertical, circular amusement ride with radius 6 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at the constant rate, going around once in 6.4 s. Consider a rider whose mass is 70 kg. How many homes can be heated with an energy : When it rains water vapour in the air condenses into liquid water and energy is released. How much energy is released when 0.0244m of rain falls over an area of 2.59 x 10^6 m^2? If the average energy needed to heat one home for a year is 1.40 x 10^11.. Establish the coefficient of kinetic friction : Two horizontal forces, 218 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume that the 218 N forces are in the positive direction.) What is the speed of the ball at that point : A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..

### Write a Review

#### Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

#### Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

#### What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

#### What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

#### What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

#### Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

#### Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

#### Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

#### Quadrupole moments in the shell model

Quadrupole moments in the shell model

#### Determine the tension in each string

Determine the tension in each string

#### Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

#### Evaluate maximum altitude

Evaluate maximum altitude?