What is the direction of velocity

Assignment Help Physics
Reference no: EM138070

Q1. Consider a motor that exerts the constant torque of 25.0 N cdot m to a horizontal platform whose moment of inertia is 50.0 kg cdot m^2. Imagine that the platform is firstly at rest and the torque is applied for 12.0 rotations. Neglect friction. What is the rotational kinetic energy of the platform K_rot,f at the end of the procedure described above?

Q2. On a very muddy football field, a 100 linebacker tackles a 75 halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.9 north's and the halfback is sliding with a velocity of 7.9 east's.

What is the magnitude of the velocity at which the two players move together immediately after the collision?

What is the direction of velocity?

Reference no: EM138070

Questions Cloud

What is the gravitational attractive force : A screen is placed 1.30 {rm m} behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.70 {rm cm} wide-that is, two first-order diffraction minima are separated by 1.70 {rm cm}.
Determine the maximum current a 1.53-mm-diameter niobium : A typical Major League fastball is thrown at about 99 mph and with a spin rate of 103 rpm. If the distance between the pitcher's point of release and the catcher's glove is exactly 65.5 ft, how many full turns does the ball make between release and c..
What is the net force exerted on the skier : A 3.60-{rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 {rm kg} construction worker stands at the far end of the beam. What is the magnitude..
Estimate the temperature of a 150 w light bulb : The temperature of the glass surface of a 30 W light bulb is 75°C when the room temperature is 10°C. Estimate the temperature of a 150 W light bulb with a glass bulb the same size. Consider only radiation, and assume that 90% of energy is emitted as ..
What is the direction of velocity : On a very muddy football field, a 100 linebacker tackles a 75 halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.9 north's and the halfback is sliding with a velocity of 7.9 east's.
In the two-way anova the dfm : The variable recorded for each subject was the number of additional yards (possibly negative) that the subject could drive the ball by the end of the season. In the two-way ANOVA the DFM
What is the maximum compression of the spring : Dan is gliding on his skateboard at 2.0 m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.0 m/s. How fast is Dan going as his feet hit the ground? Dan's mass is 60 kg and the skateboard's mass is 5.0 kg.
Study of cardiovascular risk factors : A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study so that the two factors are smoking level and gender.
What minimum coefficient of kinetic friction : Find out the object position p for the image to be erect and 7 times the size of the object. Focal length is 46 cm.

Reviews

Write a Review

Physics Questions & Answers

  What distance does the train travel while slowing down

A 3.3 block of wood sits on a table. A 3.0 bullet, fired horizontally at a speed of 480, goes completely through the block, emerging at a speed of 200 .What is the speed of block immediately after the bullet exits.

  Analyse the time it would take a nasa satellite to travel

NASA sends a satellite to another planet by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit (1 AU) and the aphelion is at the radius of the planet's orbit. Most of the trip is..

  How to compute average power output

How to compute  Average power output

  What is rotational kinetic energy of the platform

If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles

  What is the frequency heard by the observer

A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .

  What is the final temperature

A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.

  What is its speed as it hits the ground

A 3.10-m-long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 kg construction worker stands at the far end of the beam. What is the magnitude of torque abou..

  How much does the rocket clear the top of the wall

How much does the rocket clear the top of the wall

  Find the electric field between them and surface charge

The parallel metal plate of a capacitor is detached by a distance of 0.5cm and is connected to a 90v battery. Find the electric field between them and surface charge density on the plate.

  Find parametric equations for the shell''s trajectory

A shell, fired from a cannon, has a muzzle speed (the speed as it leaves the barrel) of 800 ft/s. The barrel makes an angle of 45o with the horizontal and, for ease; the barrel opening is assumed to be at ground level.

  What is the distance to the screen

A diffraction grating with 330 {rm lines/mm} is 1.00 {rm m} in front of a screen. What is the wavelength of light whose first-order maxima will be 17.0 {rm cm} from the central maximum on the screen.

  What is velocity of the boat relative to the shore

What is velocity of the boat relative to the shore

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