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6 Nov 2019
1) A car can decelerate at -5.00 m/s2 without skidding when coming torest on a level road. What would be the magnitude of its deceleration if the road were inclined at 12° uphill? Assume the same static friction coefficient.
2) A 6480 kg helicopter accelerates upward at 0.57m/s2 while lifting a 1190 kg car.
(a) What is the lift force exerted by the air on the rotors?
(b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter?
1) A car can decelerate at -5.00 m/s2 without skidding when coming torest on a level road. What would be the magnitude of its deceleration if the road were inclined at 12° uphill? Assume the same static friction coefficient.
2) A 6480 kg helicopter accelerates upward at 0.57m/s2 while lifting a 1190 kg car.
(a) What is the lift force exerted by the air on the rotors?
(b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter?
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19 Dec 2023
9 Jan 2021
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