a 2.1x10^3 kg car starts from rest at the top of the driveway that is sloped at an angle of 20 degree with the horizontal. an av
erage friction force of 4.0x10^3 N impedes the cars motion so that the cars speed at the bottom of the driveway is 3.8 m/s. what is the length of the driveway?
1 answer:
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Answer:
The common velocity v after collision is 2.8m/s²
Explanation:
look at the attachment above ☝️
