subject
Physics, 14.06.2021 18:50 jesusmejia383

A car and a truck are both travelling at the speed limit of 60kilometers per hour but in opposite directions. The truck hastwice the mass of the car. The vehicles collidehead-on and become entangled together. Required:
a. During the collision, how does the force exerted by thecar on the truck compare with the force exerted by the truck on thecar? Explain.
b. In what direction will the entangled vehicles move aftercollision, or will they be stationary? Support your answer, referring to a physics principle.
c. Determine hte speed (in kilometers per hour) of thecombined wreck immdeiately after the collision.
d. How does the acceleration of the car compare with theacceleration of the truck during the collision? Explain.
e. Both the car and truck drivers are wearing seat belts. Which driver is likely to be more severly jolted in the collision?Explain.
f. The total kinetic energy of the system decreases as aresult of the collision. Is the principle of conservation of energyviolated?

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 02:50
An alligator swims to the left with a constant velocity of 5 \,\dfrac{\text{m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction. when the alligator sees a bird straight ahead, the alligator speeds up with a constant acceleration of 3 \,\dfrac{\text {m}}{\text s^2}3 s 2 m ? 3, space, start fraction, m, divided by, s, start superscript, 2, end superscript, end fraction leftward until it reaches a final velocity of 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction leftward. how many seconds does it take the alligator to speed up from 5 \,\dfrac{\text {m}}{\text s}5 s m ? 5, space, start fraction, m, divided by, s, end fraction to 35 \,\dfrac{\text {m}}{\text s}35 s m ? 35, space, start fraction, m, divided by, s, end fraction?
Answers: 3
question
Physics, 22.06.2019 12:00
It is really hard for me right know
Answers: 1
question
Physics, 22.06.2019 21:20
People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)
Answers: 3
question
Physics, 23.06.2019 05:00
How long will it take a car traveling of a constant speed of 45m/s to cover the distance of a 2.5km?
Answers: 1
You know the right answer?
A car and a truck are both travelling at the speed limit of 60kilometers per hour but in opposite di...
Questions
question
Advanced Placement (AP), 23.12.2020 17:40