As a van climbs a 35 ° slope at 60 m/s, its driver falls ill and takes his foot off the accelerator pedal. The van stops after 75 m. Since the ill driver cannot use the foot brake and hand brake, the truck starts to move downhill after a moment's stop. After the van slides 40 meters downhill, the driver begins to brake. Since the braking force is 0.5W (W = weight); a- What is the kinetic friction coefficient between the road and the van? b- Calculate the total time it takes until the van comes to the point where the driver got sick while going down the hill. 35°
As a van climbs a 35 ° slope at 60 m/s, its driver falls ill and takes his foot off the accelerator pedal. The van stops after 75 m. Since the ill driver cannot use the foot brake and hand brake, the truck starts to move downhill after a moment's stop. After the van slides 40 meters downhill, the driver begins to brake. Since the braking force is 0.5W (W = weight); a- What is the kinetic friction coefficient between the road and the van? b- Calculate the total time it takes until the van comes to the point where the driver got sick while going down the hill. 35°
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