Physics 202 Online Mock Exam

A projectile is fired horizontally in a region of no air resistance. The projectile maintains its horizontal component of velocity because

A 100-N force vector, acting at an angle of 45 degrees to the horizontal, has

A car travels 120 km east and then 50 km north. What distance should the car travel in order to return to its origin in a straight path?

At what angle should the car in preceding item head in order to return to its origin in a straight path?

What can be said when a net force acts on a body?

What is the acceleration of a car that maintains a constant velocity of 60 km/h for 2 hrs

A ball is thrown upward and caught when it comes back down. Neglecting air resistance, the speed with which the ball is caught is

A stone is thrown at an angle of 30 degrees above the horizontal. As it rises, its vertical component of velocity

If you drop an object, it will accelerate downward at a rate of 9.8 m/s2. If you instead throw it upward, its acceleration (in the absence of air resistance) will be

You stand at the top of a cliff and throw a rock downward, and another rock horizontally at the same speed. The rock that stays in the air for the longer time is the one thrown

Races are timed to 1/1000 of a second. What distance could skater moving at a speed of 10 m/s travel in that period of time?

A, B and C are coplanar, concurrent forces. If A= 100 dyn, 35o N of W; B= 150 dyn, 25o W of S; and A+B+C = 200 dyn, E: 1. What is the magnitude of C?

A, B and C are coplanar, concurrent forces. If A= 100 dyn, 35 degrees N of W; B= 150 dyn, 25 degrees W of S; and A+B+C = 200 dyn, E: 2. What is the direction of C?

A, B and C are coplanar, concurrent forces. If A= 100 dyn, 35 degrees N of W; B= 150 dyn, 25 degrees W of S; and A+B+C = 200 dyn, E: 3. What is the magnitude of A-B-2C?

A, B and C are coplanar, concurrent forces. If A= 100 dyn, 35 degrees N of W; B= 150 dyn, 25 degrees W of S; and A+B+C = 200 dyn, E: 4. What is the direction of A-B-2C?

II. From the top of a 100-m cliff overlooking the sea, a physics student throws, stones A and B. The stones have identical initial speeds of Vo =13 m/s and are thrown at the same angle of θ = 30o, stone A above the horizontal and stone B below the horizontal. Neglecting air resistance: 5. What is the velocity of stone A just before it hits the lake?

II. From the top of a 100-m cliff overlooking the sea, a physics student throws, stones A and B. The stones have identical initial speeds of Vo =13 m/s and are thrown at the same angle of θ = 30o, stone A above the horizontal and stone B below the horizontal. Neglecting air resistance: 6. What is the velocity of stone B just before it hits the lake?

II. From the top of a 100-m cliff overlooking the sea, a physics student throws, stones A and B. The stones have identical initial speeds of Vo =13 m/s and are thrown at the same angle of θ = 30o, stone A above the horizontal and stone B below the horizontal. Neglecting air resistance: 7. What is the distance between the points where the stones hit the lake?

II. From the top of a 100-m cliff overlooking the sea, a physics student throws, stones A and B. The stones have identical initial speeds of Vo =13 m/s and are thrown at the same angle of θ = 30o, stone A above the horizontal and stone B below the horizontal. Neglecting air resistance: 8. How long after stone B hits the lake does stone A hit the lake?

III. A car and a truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 3 ft/s2 while the car has a constant acceleration 4 ft/s2. The car overtakes the truck after the truck has moved 60ft. 9. How long did it take the car to overtake the truck?

III. A car and a truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 3 ft/s2 while the car has a constant acceleration 4 ft/s2. The car overtakes the truck after the truck has moved 60ft. 10. How far was the car behind the truck initially?

III. A car and a truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 3 ft/s2 while the car has a constant acceleration 4 ft/s2. The car overtakes the truck after the truck has moved 60ft. 11. What was the velocity of the car when they were abreast?

III. A car and a truck start from rest at the same instant, with the car initially at some distance behind the truck. The truck has a constant acceleration of 3 ft/s2 while the car has a constant acceleration 4 ft/s2. The car overtakes the truck after the truck has moved 60ft. 12. What was the velocity of the truck when they were abreast?

IV. The system shown is in equilibrium. 13. What is the tension T3 in cord 3?

IV. The system shown is in equilibrium. 14. What is the tension T4 in cord 4?

IV. The system shown is in equilibrium. 15. What is the tension T5 in cord 5?

16. What is the weight of block B?

V. In the figure below, the pulleys are light and frictionless, and the coefficients of friction between the blocks and the surfaces are μk = 0.10 and μs = 0.30. If the hanging block X moves down a distance of 0.5m in 0.5s starting from rest: 17. What is the constant acceleration of the system?

V. In the figure below, the pulleys are light and frictionless, and the coefficients of friction between the blocks and the surfaces are μk = 0.10 and μs = 0.30. If the hanging block X moves down a distance of 0.5m in 0.5s starting from rest: 18. What is the tension in the cord connecting the 40-kg block and the 10-kg block?

V. In the figure below, the pulleys are light and frictionless, and the coefficients of friction between the blocks and the surfaces are μk = 0.10 and μs = 0.30. If the hanging block X moves down a distance of 0.5m in 0.5s starting from rest: 19. What is the tension in the cord connecting the 10-kg block and the 20-kg block?

V. In the figure below, the pulleys are light and frictionless, and the coefficients of friction between the blocks and the surfaces are μk = 0.10 and μs = 0.30. If the hanging block X moves down a distance of 0.5m in 0.5s starting from rest: 20. What is the mass of the hanging block X?