Physics, 21.12.2019 03:31 irenecupcake3467
A1500 kg car driving at 100 km/hr brakes and comes to a stop after sliding for 57 m.
a) calculate the magnitude of the friction force between the car and road.
b) calculate the time the car takes to come to a stop.
c) a wet road typically has a coefficient of friction 60% lower than that of a dry road.
how would this change the distance and time it takes the car to stop
Answers: 2
Physics, 22.06.2019 02:30
Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.
Answers: 2
Physics, 23.06.2019 00:30
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 2
A1500 kg car driving at 100 km/hr brakes and comes to a stop after sliding for 57 m.
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