Physics Problems Solutions

1. How many centimeters are there in one yard?

2. A jogger has a speed of 6 mi/hr. What is her speed in m/s?

3. How many milliliters are there in 6.5 liters?

1. A car traveling with a constant acceleration of 2.00 m/s goes through a 100 m tunnel in 5.25 s. What is its velocity as it enters the tunnel? What is its velocity as it exits the tunnel?

2. A sports car can accelerate from 0 to 100 km/h in 4.2 s. What is the car's average acceleration during this time?

3. A stone is dropped from a 75 m high cliff. How far is the stone from the ground after 4.0 s?

1. A car drives North for 15.5 km and then turns and drives West for 23.5 km. If the travel time is 65.0 minutes what is the car's average velocity?

2. A coin rolls off a 0.75 m high table at a speed of 0.30 m/s. How long will it take for the coin to hit the ground?

3. A ball is thrown from ground level at an initial velocity of 7.2 m/s at an angle of 35 degrees from the horizontal. What is the maximum height reached by the ball?

Image:
Taylor, Richard "John Dimmer 1965 Lotus 35 & Charles McCabe Lotus 18 F1" 2008 Online image http://www.flickr.com/photos/34094515@N00/3097833553/
Used under an attribution Creative Commons license.

1. A force of 25.4 N is applied on a 0.250 kg ball. What is the ball's acceleration?

2. A 10.0 kg brick rests on a table. If 50.0 N is required to slide the brick across the table at constant speed, what is the coefficient of friction?

3. A 250 kg crate is lowered by a cable with a constant downward acceleration of 0.25 m/s^2. What is the tension in the cable?

1. How much work is required to speed up a 850 gram toy train from speed of 1.5 m/s to 2.4 m/s?

2. A motor can do 35000 J of work in 15 s. What is its maximum power?

3. A stone falls from a height of 25 m. What is its gravitational potential energy 1.0 s after it starts falling?

Photograph copyright Brian Robert Marshall and licensed for reuse under this Creative Commons Licence.

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