Find the change in mechanical energy of the car-truck system

Assignment Help Physics
Reference no: EM13544854

A 1 170.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 800.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the east.

(a) What is the velocity of the truck right after the collision? (Give your answer to five significant figures.)

m/s east

(b) What is the change in mechanical energy of the car-truck system in the collision?

J

(c) Account for this change in mechanical energy.

Reference no: EM13544854

Questions Cloud

Explain what is the ratio of the number of molecules : What is the ratio of the number of molecules having twice the most probable speed to the number having the most probable speed
Calculate how many kilograms of ice in the tub : A Carnot engine uses a hot reservoir consisting of a large amount of boiling water and a cold reservoir consisting of a large tub of ice and water. how many kilograms of ice in the tub
Coefficient of kinetic friction between the block and table : A 0.460 kg wood block is firmly attached to a very light horizontal spring (k = 160 N/m) as shown in Fig. 6-40. It is noted that the block-spring system, when compressed 5.0 cm and released, stretches out 2.3 cm beyond the equilibrium position before..
What is the ratio of the final kinetic energy of the system : Two objects moving with a speed v travel in opposite directions in a straight line. The objects stick together when they collide, and move with a speed of after the collision. What is the ratio of the final kinetic energy of the system to the initial..
Find the change in mechanical energy of the car-truck system : A 1 170.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 800.0 kg truck moving in the same direction at 20.000 m/s. What is the change in mechanical energy of the car-truck system
Wheel rotating with a constant angular acceleration turns : A wheel rotating with a constant angular acceleration turns through 24 revolutions during a 6 s time interval. Its angular velocity at the end of this interval is 18 rad/s. What is the angular acceleration of the wheel? Note that the initial angular ..
Obtain the number of millimeters by which the ice thickens : A 0.310-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -17.2 °C. In 4.30 minutes, the ice thickens by a small amount. Calculate the number of millimeters by which the ice thickens
What was the blood pressure at the feet : If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 18 m and a heart height of 8.3 m, What was the blood pressure (in torr or mm Hg) at the feet
Find the weight of this pillar in pounds : One of the concrete pillars that supports a house is 2.3 m tall and has a radius of 0.69 m. Find the weight of this pillar in pounds

Reviews

Write a Review

 

Physics Questions & Answers

  What are underwater angles of refraction

W hat are underwater angles of refraction

  Determine how much work is done on the cab

a 0.22 kg block of cheese lies on the floor of a 870 kg elevator cab that is being pulled upward by a cable through distance d = 2.3 m. how much work is done on the cab by the force from the cable

  What is its hang time

A football is punted with an initial velocity of 28.7 m/s and an initial angle of 54.1o. What is its hang time

  How long does the projectile remain in air

A steel aircraft carrier is 370 m long when moving through the icy North Atlantic at a temperature of 2°C. By how much does the carrier lengthen when it is travelling in the warm Mediterranean Sea at the temperature of 21 °C.

  What is the thermal efficiency of the engine

A Carnot engine is operated between two heat reservoirs at temperatures of 530K and 300K. What is the thermal efficiency of the engine

  What is the peak current carried by the axon

A biophysics experiment uses a very sensitive magnetic field probe to determine the current associated with a nerve impulse traveling along an axon. what is the peak current carried by the axon

  How large is the charge on each

Two coins, carrying identical charges, lie 1.5 m apart on a table and a coin experiences a force of 2.0 N, How large is the charge on each

  What is the deuteron energy

Young's Double Slit Experiment is performed with 589 nm light and a distance of 2.00 m between the slits and the screen. The fifth interference minimum is observed 7.50 mm from the central maximum. Resolve the spacing of the slits.

  How far would it have traveled in a vacuum

A flat sheet of ice (n = 1.309) has a thickness of 1.6cm. It is on top of a flat sheet of crystalline quartz (n = 1.544) that has a thickness of 0.86cm. Light strikes the ice perpendicularly and travels through it and then through the quartz. In t..

  Calculate the resulting charge on capacitor c1 and c2

Capacitors C1 = 6.03 ?F and C2 = 2.45 ?F are charged as a parallel combination across a 298 V battery, Calculate the resulting charge on capacitor C1 and C2

  Find the energy stored in each individual capacitor

Two capacitors, C 1 = 20.0 µF and C 2 = 38.0 µF, are connected in series, and a 18.0 V battery is connected across them.- total energy stored ? Find the energy stored in each individual capacitor- energy stored in C1 ?

  Calculate the resulting increase in the springs mass

A spring with a force constant of 588N/m is compressed a distance of 42cm. Find the resulting increase in the spring's mass

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