Estimate what surfaces are likely to cause this friction

Assignment Help Physics
Reference no: EM13551817

A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. This causes the machine to slide backward 1.122 meters before coming to a rest.

a) What is the machine's velocity?

b) How long did it take to go the 1.122 meters?

c) What was the momentum of the machine?

d) What was the force necessary to move this machine?

e) What was its acceleration during this time?

f) What is the coefficient of kinetic friction?

g) What surfaces are likely to cause this friction?

h) IF this was on the moon, and all else was the same, how far would this machine slide?

Reference no: EM13551817

Questions Cloud

Final moment of inertia of the system about center of disk : A solid disk of mass M and radius R is pivoted so that it can rotate about its center. The disk is initially at rest. A ball of mass m and speed v travels along a path tangential to the rim of the disk. The ball sticks to the disk and the assembly..
Find the direction of the first ball after the collision : One billiard ball is shot east at 3.5 m/s. A second, identical billiard ball is shot west at 2.1 m/s. The balls have a glancing collision, not a head on collision, deflecting the second ball by 90 degrees and sending it north at 1.8 m/s.
Estimate by how much is it off at the end of one day : A pendulum clock has an aluminum pendulum exactly 1.0 m long when the clock is calibrated perfectly. By how much is it off at the end of one day
The emf of the battery v and the inductance of the circuit : A battery is connected in series with a R = 0.31 ? resistor and an inductor, as shown in the figure below. The switch is closed at t = 0. The time constant of the circuit is ? = 0.20 s, and the maximum current in the circuit is I = 7.9 A.
Estimate what surfaces are likely to cause this friction : A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. This causes the machine to slide backward 1.122 meters before coming to a rest. What surfaces are likely to cause this friction
A hawk flies in a horizontal arc of radius : A hawk flies in a horizontal arc of radius 14.4 m at a constant speed 3.55 m/s. (a) Find its centripetal acceleration. (b) It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.35 m/s2. Find the acceleration in t..
Coefficient of static friction between coin and turntable : A coin placed 30.4 cm from the center of a rotating, horizontal turntable slips when its speed is 48.8 cm/s. (b) What is the coefficient of static friction between coin and turntable?
What is the cross-sectional area of the cable : A tightrope walker who weighs 640 N walks along a steel cable. When he is halfway across, the cable makes an angle of 0.040 rad below the horizontal.  What is the cross-sectional area of the cable
How high is the mans well-focused image on the film : A man standing in front of a camera. The camera lens has a 53 mm focal length. How high is the man's well-focused image on the film

Reviews

Write a Review

Physics Questions & Answers

  Calculate the total power output of lit light bulbs

two rooms, one at 30 degree Celsius and the other at 10 degrees Celsius, Calculate the total power output of lit light bulbs required in the warmer room

  Illustrate what is the velocity of the second block

Illustrate what is the velocity of the second block after the bullet imbeds itself? (b) Find the ratio of the total kinetic energy after the collision to that before the collision.

  Determine the magnitude of the normal force

A person pulls a 5.0 kg sled by a rope across a floor. The coefficient of kinetic friction between the floor and the sled is 0.15. What is the magnitude of the normal force

  Determine what pressure does she exert on the floor

A 43.2 kg woman balances on one heel of a pair of high-heeled shoes. If the heel is circular with radius 0.692 cm, what pressure does she exert on the floor

  What is the distance deltay between the two points

imagine a linebacker collides with a stationary quarterback and they become entangled. what will happen to the velocity of the linebacker-quarterback system if momentum is conserved.

  Determine the internal resistance of the battery

A 1.57-? resistor is connected across a 6.90-V battery. The voltage between the terminals of the battery is observed to be only 6.30 V

  How much work was done to accelerate the blade

An electric trimmer blade has rotational inertia 2.00×10?4kg?m2. How much work was done to accelerate the blade

  What is the pressure on each show independently

A person with a weight of 280 lb stands on two feet wuth their weight equally distributed between the shoes, What is the pressure on each show independently

  Compute the average force the floor exerts on the ball

find the magnitude and direction of the impulse delivered to the ball by the floor.

  Express this path difference in terms of the wavelength

A pair of slits, separated by 0.160 mm, is illuminated by light having a wavelength of ? = 554 nm. An interference pattern is observed on a screen 144 cm from the slits. Consider a point on the screen located at y = 1.80 cm from the central maximu..

  What is the terminal speed for skier

What is the terminal speed for an 76.0kg skier going down a 38.0? snow-covered slope on wooden skis ?k= 0.060

  How much mass is converted to energy

How much mass is converted to energy in H fusion and What do exoplanets (especially Hot Jupiters) tell us about planet behavior!

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd