A car coasts (engine off) up a 30o grade. If the speed of the car is 25 m/s at the bottom of the grade, what is the distance traveled by the car before it comes to rest?
Answer to relevant QuestionsAssuming ideal frictionless conditions for the apparatus shown in Fig. 4.40, what is the acceleration of the sys-tem if (a) m1 = 0.25 kg, m2 = 0.50 kg. and m3 = 0.25 kg. (b) m1 = 0.35 kg, m2 = 0.15 kg, and m3 = 0.50 kg? A 10-kg mass is suspended as shown in Fig. 4.41. What is the tension in the cord between points A and B? One mass, m1 = 0.215 kg, of an ideal Atwood machine (see Fig. 4.42) rests on the floor 1.10 m below the other mass, m2 = 0.255 kg, (a) If the masses are released from rest, how long does it take m2 to reach the floor? (b) ...In moving a 35.0-kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 275 N is necessary to set the desk in motion, and a force of 195 N is necessary to keep it in motion at a ...A person has a choice while trying to push a crate across a horizontal pad of concrete: push it at a down-ward angle of 30o, or pull it at an upward angle of 30o. (a) Which choice is most likely to require less force on the ...
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