A car of mass 1100 kg is claimed to be capable of reaching a speed of...
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A car of mass 1100 kg is claimed to be capable of reaching a speed of 60 mph from rest in 8.5 seconds. Take 60 mph = 96 kph. 1. Assuming that the rate of acceleration of the car is constant throughout the time it is accelerating: calculate the power the car's engine is developing at the wheels the moment before it reaches 60 mph. 2. State two other assumptions you have made in arriving at your answer. 3. If the car's effective cross-sectional area is 1.6 m², and its drag coefficient is 2.3. use your calculated power rating from part (1) to estimate the maximum speed the car could reach on level ground. Take the density of air to be 1.2 kg m-³. 4. State two other assumptions you have made in arriving at your answer. A car of mass 1100 kg is claimed to be capable of reaching a speed of 60 mph from rest in 8.5 seconds. Take 60 mph = 96 kph. 1. Assuming that the rate of acceleration of the car is constant throughout the time it is accelerating: calculate the power the car's engine is developing at the wheels the moment before it reaches 60 mph. 2. State two other assumptions you have made in arriving at your answer. 3. If the car's effective cross-sectional area is 1.6 m², and its drag coefficient is 2.3. use your calculated power rating from part (1) to estimate the maximum speed the car could reach on level ground. Take the density of air to be 1.2 kg m-³. 4. State two other assumptions you have made in arriving at your answer.
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Related Book For
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
Posted Date:
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