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Transcript
Math Practice for Test!! Make Sure you can do these problems!!! Very similar ones will be on your test! 1. A runner finishes a 500-meter race in 1.6 minutes. What is her average speed? 2. A motorist travels at an average speed of 55.0 miles/hour for 4.25 hour. How far did he travel? 3. A pitcher throws a baseball to home plate, a distance of 60.5 feet. The ball reaches home plate in .63 seconds. What is the velocity of the ball? 4. What is the average acceleration of a car that goes from 0 m/s to 25 m/s in 8.0 sec? 5. A cheetah can accelerate at up to 6.0 m/s squared. How long does it take for a cheetah to speed up from 10.5 m/s to 12.2 m/s? 6. What unbalanced force is needed to give a 976 kg vehicle an acceleration of 2.5 m/s2? 7. A force of 240 Newtons causes an object to accelerate at 3.2 m/s2. What is the mass of the object? 8. A .25 kg steel ball experiences a net force of 1.15 Newtons as it rolls down a ramp. What is the acceleration of the ball? 9. How much does a 59.0 kg woman weigh on Earth? 10. A car has a mass of 800 kg. What is the weight of the car? 11. An unbalanced force lifting a house is 2850 N. This force causes the house to move from rest to an upward speed of .15m/s in 5.0 sec. What is the mass of the house? 12. A grocery cart rolls downhill in a parking lot. The cart has a maximum speed of 1.3 m/s when it hits a car and comes to a rest .30 seconds later. If a force of –65 N stops the cart, what is the mass of the grocery cart?