An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows down. The asteroid has a mass of 4.1x 10 kg, and the force causes its speed to change from 7900 to 5900m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.3x 10 m determine the magnitude of the force. (a) Work- (b) F- FH

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An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows down. The asteroid has a
mass of 4.1x 10 kg, and the force causes its speed to change from 7900 to 5900m/s. (a) What is the work done by the force? (b) If the
asteroid slows down over a distance of 2.3x 10 m determine the magnitude of the force.
(a) Work-
(b)
F=
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive
force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 143 kg. Under the influence of a drive
force of 250 N, it is moving at a constant velocity whose magnitude is 4.93 m/s. The drive force is then shut off. Find (a) the distance in
which the snowmobile coasts to a halt and (b) the time required to do so.
(a) s=
i
(b) t= i
00
Transcribed Image Text:An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows down. The asteroid has a mass of 4.1x 10 kg, and the force causes its speed to change from 7900 to 5900m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2.3x 10 m determine the magnitude of the force. (a) Work- (b) F= Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 143 kg. Under the influence of a drive force of 250 N, it is moving at a constant velocity whose magnitude is 4.93 m/s. The drive force is then shut off. Find (a) the distance in which the snowmobile coasts to a halt and (b) the time required to do so. (a) s= i (b) t= i 00
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