What was sean''s average velocity for the whole race

Assignment Help Physics
Reference no: EM13536438

Sean is running a 100m dash. When the starter's pistol fires, he leaves the starting block and continues speeding up until he reaches his top speed of 11m/s 6s into the race. He holds this speed for 2s and then gradually slows down until he crosses the finish line 11s after he started the race.
a. What was Sean's average accelaration during the first 6s of the race?
b. What was Sean's average acceleration from 6 to 8s into the race?
c. What was Sean's average velocity for the whole race?
d. Which direction was Sean's acceleration in during the last 3s of the race?
e. Draw a velocity vs time and acceleration vs time plot for this activity.

Reference no: EM13536438

Questions Cloud

Calculate the capacitance : A spherical capacitor consists of two concentric spherical metal shells and has a radius a for the outer sphere and b for the inner sphere. Calculate the capacitance.
Compute the mass of this canister : An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to measure distance and time accurately. What is the mass of this canister
Define an attempt at synthesizing a certain optically active : An attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. The mixture had an observed specific rotation of +12.1 degree.
Obtain how much mechanical energy dissipates in collision : On a highly polished, essentially frictionless lunch counter, a 0.410 submarine sandwich moving 2.90 to the left collides with a 0.260 grilled cheese sandwich moving 1.05 to the right. How much mechanical energy dissipates in the collision
What was sean''s average velocity for the whole race : Sean is running a 100m dash. When the starter's pistol fires, he leaves the starting block and continues speeding up until he reaches his top speed of 11m/s 6s into the race. He holds this speed for 2s and then gradually slows down until he crosse..
Explain molecules of associated water molecules : 62.61 grams of CaOH2*7H2O contains. 1. How many moles of associated water molecules. 2. Molecules of associated water molecules
Considered as set of dipole magnets with uniform magnetic : A proton with a kinetic energy of 3GeV is travelling in the synchrotron. Assume the synchlotron can be considered as a set of dipole magnets with a uniform magnetic field B arranged in a circular orbit (radius r = 100m).
Compute the average speed of the particle : A particle travels 18 times around a 11-cm radius circle in 45 seconds. What is the average speed (in m/s) of the particle
Explain what is the central atom for nh3 : What is the central atom for NH3, how many bonds are formed, what's the polarity and what's the direction of electronegativity

Reviews

Write a Review

Physics Questions & Answers

  Calculate the total energy of the proton

A proton has a speed of 0.80c.Calculate the rest energy of the proton. Calculate the total energy of the proton

  Obtain the angular speed of the wheel

An automobile tire has a radius of 0.325 m, and its center moves forward with a linear speed of v = 24.8 m/s. Determine the angular speed of the wheel

  Find the phase constant of wave

Two sinusoidal waves of the same period, with amplitudes of 5.0 and 6.5 mm, travel in the same direction along a stretched string; they produce a resultant wave with an amplitude of 10.036 mm. The phase constant of the 5.0 mm wave is 0. What is th..

  What is the skis speed at the base of the incline

A ski starts from rest and slides down a 28 degree incline 70m long. If the coefficient of friction is 0.090, what is the ski's speed at the base of the incline

  What is the average angular velocity of his arms and legs

If a person of mass M simply moved forward with speed V, his kinetic energy would be1/2 MV^2. However, in addition to possessing a forward motion, What is the average angular velocity of his arms and legs

  Find what is the net charge of all these electrons

water has a mass per mole of 18.0 g/mol, and each water molecule (H20) has 10 electrons. what is the net charge of all these electrons

  How many oscillators are in this block

A carbon nanopaeticle contains 7000 carbon atoms. According to the Einstein model of a solid, how many oscillators are in this block

  What was the initial speed of the northward-moving vehicle

Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle

  Determine the force f

A 0.105-kg ball is dropped from rest. If magnitude of the ball's momentum is 0.790 kg · m/s just before it lands on the ground, from what height was it dropped.

  Determine the average force was exerted on the ball

After falling from rest from a height of 26.0 m, a 1.1 kg ball rebounds upward, reaching a height of 16.0 m. what average force was exerted on the ball

  Find the approximate electric field from the surface of rod

A 100.0 m long rod with a diameter of 3.0 mm has a charge of 1032 C. What is the approximate electric field 3 mm from the surface of the rod

  What is the total work required to drive in the screw

It takes 25 turns to drive a screw completely into a block of wood. Because the friction force between the wood and the screw is proportional to the contact area between the wood, what is the total work (in J) required to drive in the screw

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