7. A ball is raised 5.0 m off the ground and weighs 750 g. What is its potential energy? 750 grams = 0.750 kg

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Chapter1: Units, Trigonometry. And Vectors
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Due May 5 - Do the second set of...
((NOTE: Let Gravity on Earth be 10m/s^2))
4. A van travels at a speed of 40.0 km/h with a kinetic energy of 7 600 J. What is the van's mass?
40 km/h = 11.11 m/s
5. A hammer weighing 200.0 g is raised 3.0 m above the ground. What is its potential energy?
200 grams = 0.2 kg
6. A four cylinder Toyota can reach a maximum of 150.0 km/h while a six cylinder Toyota can reach
a maximum of 180 km/h. If they both weigh 1 500 kg, what is the maximum kinetic energy each
car can have?
150 km/h = 41.67 m/s
180 km/h = 50,0 m/s
7. A ball is raised 5.0 m off the ground and weighs 750 g. What is its potential energy?
750 grams = 0.750 kg
8. An electric toy car weighs 150.0 g and travels at 0.50 km/h. What is its kinetic energy?
0.5 km/h = 0,1389 m/s
150 grams = 0.150 kg
9. A javelin is raised 10.0 m off the ground and has a potential energy of 501 J. What is the mass of
the javelin?
10. Which will cause more damage, a truck weighing 700 kg travelling at a speed of 60 km/h or a
truck weighing 300 kg travelling at a speed of 100 km/h?
60 km/h = 16,67 m/s 100 km/h = 27,78 m/s
11. A car has a speed of 90 km/h and a mass of 7 000 kg. What is its kinetic energy?
90 km/h = 25,0 m/s
12. A shot-put is raised 4.00 m off the ground and has a potential energy of 7 050 J. What is the
mass of the shot-put?
13. A truck weighing 17 000 kg has 9 100 J of kinetic energy. What is the speed it is travelling at?
Transcribed Image Text:9:26 Due May 5 - Do the second set of... ((NOTE: Let Gravity on Earth be 10m/s^2)) 4. A van travels at a speed of 40.0 km/h with a kinetic energy of 7 600 J. What is the van's mass? 40 km/h = 11.11 m/s 5. A hammer weighing 200.0 g is raised 3.0 m above the ground. What is its potential energy? 200 grams = 0.2 kg 6. A four cylinder Toyota can reach a maximum of 150.0 km/h while a six cylinder Toyota can reach a maximum of 180 km/h. If they both weigh 1 500 kg, what is the maximum kinetic energy each car can have? 150 km/h = 41.67 m/s 180 km/h = 50,0 m/s 7. A ball is raised 5.0 m off the ground and weighs 750 g. What is its potential energy? 750 grams = 0.750 kg 8. An electric toy car weighs 150.0 g and travels at 0.50 km/h. What is its kinetic energy? 0.5 km/h = 0,1389 m/s 150 grams = 0.150 kg 9. A javelin is raised 10.0 m off the ground and has a potential energy of 501 J. What is the mass of the javelin? 10. Which will cause more damage, a truck weighing 700 kg travelling at a speed of 60 km/h or a truck weighing 300 kg travelling at a speed of 100 km/h? 60 km/h = 16,67 m/s 100 km/h = 27,78 m/s 11. A car has a speed of 90 km/h and a mass of 7 000 kg. What is its kinetic energy? 90 km/h = 25,0 m/s 12. A shot-put is raised 4.00 m off the ground and has a potential energy of 7 050 J. What is the mass of the shot-put? 13. A truck weighing 17 000 kg has 9 100 J of kinetic energy. What is the speed it is travelling at?
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