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velocity and acceleration

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4.) A car has an average speed of 80.0 km/h for one hour, then an average speed of 90.0 km/h for two hours during a three-hour trip What was the average speed for the three-hour trip?

5.) What is the acceleration of a car that moves from a speed of 5.0 m/s to a speed of 15m/s during a time of 6.0 s?

10.) An archer shoots an arrow straight up with an initial velocity magnitude of 199.0 m/s. After 5.00 s, the velocity is 51.0 m/s. At what rate is the arrow decelerated?

13.) You drop a rock from a cliff, and 5.00 s later you see it hit the ground. How high is the cliff?

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Physical Science
I need solutions in a word document for the following problems in physical science.

4.) A car has an average speed of 80.0 km/h for one hour, then an average speed of 90.0 km/h for two hours during a three-hour trip What was the average speed for ...

Solution Summary

It provides examples of solving motion related questions, such as velocity, acceleration, and height of cliff. The solution is detailed and well presented.

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