9.A police car of mass 2.4x10ʻkg is travelling on the highway when the officersreceive an emergency call. They increase the speed of the car to 33m/s. Theincrease in speed results in 3.1×10°J of work done on the car. Determine theinitial speed of the police car in kilometers per hour. If this were done in a totalof 3.0 seconds, what is the minimum power of the vehicle? Express your finalanswer in both Watts and horsepower.Answer: The initial speed is approximately 28.9m/s or 1.0×10°km/ hr .The minimum power will be roughly 1.0×10°W or 1.4×10 hp.Source: modified from Nelson, Physics 12, 2009, p. 174, Sample Problem 3

Given data m=2400 kgv2=33 m/sW=3.1×105 J Here, m is the mass of the car and W is the work done. Now…

Answered: 6. A police car o: receive an em…

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6. A police car o: receive an em increase in spe initial speed o of 3.0 seconds answer in both Answer: The The r Source: modi