What is the magnitude of the tension in the string

Assignment Help Physics
Reference no: EM138626

Q1. A car travelling east at 38.0 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25.0 m/s in 2.90 s. How far does the car travel in the 2.90-s time period?

Q2. A mass m = 6.7 kg hangs on the end of a massless rope L = 2.1 m long. The pendulum is held horizontal and released from rest.

Now a peg is placed 4/5 of the way down pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. As it wraps around the peg and attains its maximum height it ends a distance of 3/5 L below its starting point (or 2/5 L from its lowest point).

What is the magnitude of the tension in the string at the top of new path (directly above the peg)?

Reference no: EM138626

Questions Cloud

What force is applied to the driver by his seat : A loudspeaker of mass 15.0 is suspended a distance of h = 2.30 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30. What is tension in each cable.
Expansionary monetary strategy to shift : Assume the economy starts out at point A. After that, the public anticipates that the Fed will use expansionary monetary strategy to shift the AD curve from AD1 to AD2.
What is the wavelength of the typical t-wave : A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..
Profit-maximizing price : What arguments can be made for charging a lower than the profit-maximizing price. What price from the available prices do you recommend.
What is the magnitude of the tension in the string : Now a peg is placed 4/5 of the way down pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. As it wraps around the peg and attains its maximum height it ends a distance of 3/5 L below its starting po..
What is the speed of the third fragment : A second fragment, who's mass is 3.4 kg, moves away from the point of explosion with a speed of 418 m/s along the negative x axis. What is the speed of the third fragment? Ignore effects due to gravity.
Influences affecting foreign exchange rates : Describe absolute and comparative advantage. Explain the influences affecting foreign exchange rates.
Disregard friction between skates and ice : A professor's office door is 0.80 wide, 3.0 high, and 5.0 thick; has the mass of 25; and pivots on frictionless hinges. A "door closer" is attached to the door and the top of door frame.
Current account trade : How does theory hypothesize that a current account trade deficit will be resolved.

Reviews

Write a Review

 

Physics Questions & Answers

  How far above the surface of the earth

A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.

  What is the magnitude of the force

What is the magnitude of the force that maintains circular motion acting on puck.

  The direction of rotation of the merry-go-round

Some athletes can put out as much as 800 watts in short bursts. If you could sustain such energy output long enough to reach the top of a mountain, how much time would it take you to get there from the valley, 3000 meters below the peak? So how does ..

  What are the magnitude and direction of its acceleration

A space traveller whose mass is 104kg leaves earth. What are his weight and masson earth and in interplanetary space where there are no near planetary objects.

  Find out the magnitude of each current

While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.

  What are the velocities of the two balls

A rifle with a barrel length of 62 cm fires a 12 g bullet with a horizontal speed of 460 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 15 cm.

  What was the mass of the ice cube

A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.

  What is coefficient of friction between chair and floor

What is coefficient of friction between chair and floor

  What potential difference must it be charged

A certain car battery with a 14.0 V emf has an initial charge of 195 A•h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of 184 W.

  At what angle is the cannonball travelling

For the polarisers, assume the incident light is linearly polarized, the transmitted intensity (through both polarisers) is 0.15×I0, and the axis of the second polarizer makes an angle θ=41° with the axis of the first polarizer. What is the angle (in..

  What is the tension in the string

It's found that string is set into oscillation only at the frequency 880 Hz and 1320 Hz as the frequency of an oscillator is varied over the range 500-1500 Hz. What is the tension in the string.

  What horizontal force acts on the puck after the push

What horizontal force acts on the   puck after the push

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