What was speed of the lighter car-was either car speeding

Assignment Help Physics
Reference no: EM13561718

A police officer is investigating the scene of an accident where two cars collided at an intersection. One car with a mass of 1015 kg moving west had collided with a 1300-kg car moving north. The two cars, stuck together, skid at an angle of 30° north of west for a distance of 17 m. The coefficient of kinetic friction between the tires and the road is 0.80. The speed limit for each car was 70 km/h.

What was the speed of the lighter car? (km/h)

What was the speed of the heavier car? (km/h)

Was either car speeding?

Reference no: EM13561718

Questions Cloud

What is the interaction rate in the target : A beam of 1 ev neutrons with beam density 10^3 cm^-3 strikes a 1 micron thick pure gold target. If the beam cross section projection on the target is 1mm^2 and the total interaction cross section is 99 b, what is the interaction rate in the target?
Positively charged conducting sphere is orbited : A positively charged conducting sphere is orbited by an electron at a constant distance. The potential difference that the electron experiences between two points in the orbit is equal to zero.
What is the charge density on each plate : A parallel-plate capacitor has a capacitance of 19.0 µF. What charge on each plate would produce a voltage of 36.0 V between the plates? What is the voltage between the plates?
What is the maximum compression of the spring : A bullet with mass 20 grams and velocity 118 m/s collides with a wooden block of mass 2.0 kg. The wooden block is initially at rest, and is connected to a spring with k = 850 N/m. The other end of the spring is attached to an immovable wall.
What was speed of the lighter car-was either car speeding : A police officer is investigating the scene of an accident where two cars collided at an intersection. One car with a mass of 1015 kg moving west had collided with a 1300-kg car moving north. The two cars, stuck together, skid at an angle of 30° n..
What is the translational kinetic energy of this mass of air : A wind turbine converts some of the kinetic energy of the wind into electric energy. Suppose that the blades of a small wind turbine have length L = 3.7 m. What is the translational kinetic energy of this mass of air
What is the magnitude of the astronauts angular velocity : An astronaut is being tested in a centrifuge. The centrifuge has a radius of 10 m and, in starting, rotates according to ? = 0.30t2, where t is in seconds and ? is in radians. what is the magnitude of the astronaut's angular velocity?
What is the wavelength of the sound : Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 25 cm apart. The sound intensity decreases as the distance between the speakers is increased, reaching zero at a separation of 35 cm.
A football is kicked at an angle : A football is kicked at an angle ? = 37.0° with a velocity of 20.0 m/s. Calculate a) the maximum height, b) the time of travel before it hits the ground, c) how far away it hits the ground, d) the velocity vector at the maximum height, and e) the ..

Reviews

Write a Review

Physics Questions & Answers

  What are the frequencies of the first two overtones

A guitar string is 90.0cm long and has a mass of 3.17 g. From the bridge to the support post (=l) is 60.0cm, What are the frequencies of the fundamental and first two overtones

  What is the magnitude of the acceleration of the ball

A ball rolls off a table and falls 0.70 m to the floor, landing with a speed of 4.3 m/s. What is the magnitude of the acceleration of the ball just before it strikes the ground

  A projectile explodes at the top of its trajectory

A projectile explodes at the top of its trajectory and breaks into two pieces with one piece having five times the mass of the other. The smaller piece returns to precisely the same point at which the projectile was launched. Where does the bigger pi..

  What is the speed of the payload

The last stage of a rocket is traveling at a speed of 7200 m/s. This last stage is made up of two parts which are clamped together, What is the speed of the payload

  Compute what is the resistance of the coil

A water heater consisting of a metal coil that is connected across the terminals of a 21.0-V power supply is able to heat 160. What is the resistance of the coil

  Compute the maximum possible efficiency

a heat engine operates between a hot reservoir at 950 degree celcius, what is the maximum possible efficiency

  What is distance between box and lens

Converging lens with plane mirror box somewhere at the left on central axis of converging lens. What is distance between box and lens

  Calculate the shear stress exerted on bone in the collision

A defensive lineman of mass M = 115 kg makes a flying tackle at vi \= 4.00 m/s on a stationary quarterback of mass m = 76 kg, calculate the shear stress exerted on the bone in the collision.

  Calculate the gravitational potential energy of the moon

the distance between the earth and moon (r = 3.84 Ã- 108 m) and Mmoon = 7.36 Ã- 1022kg and Mearth = 5.98 Ã- 1024kg. Calculate the gravitational potential energy of the moon

  An inventor claims that he has designed an engine

An inventor claims that he has designed an engine which will produce a power output of 170kW while burning a unique fuel which releases 21,000kJ of heat in a minute. He states the upper and lower temperatures of the engine are 670K and 330K, respecti..

  A 15mw energy laser has beam exit diameter of 2cm and beam

a 15mw energy laser has a beam exit diameter of 2cm and beam divergence of 0.0002radians.anbspnbspcalculate the power

  Calculate what is the speed of the arrow

An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.00 m/s on a smooth, slippery surface. What is the speed of the arrow after passing through the target

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