A bicycle with tires 68cm in diameter travels

PY 201 Seton Hall University General Physics I Final Exam Exam
Subject
Science

Course
PY 201

School
Seton Hall University

Department
PY

Question Description
general physics 1 exam

There are 65 questions

I only need the answers please please get them done and guarantee me at least an A I would appreciate that :)

It is attName__________________ Date__________________ PY201- FINAL EXAM 1. Does the displacement of an object depend on the specific location of the origin of the coordinate system? a. Yes b. No c. It is dependent upon the coordinate system d. What is a displacement again? 2. When throwing a ball straight up, which of the following is true about its velocity v and its acceleration a at the highest point in its path? a. both v = 0 and a = 0 b. v ≠ 0, but a = 0 c. v = 0, but a ≠ 0 d. both v ≠ 0 and a ≠ 0 e. The purple alien 3. You throw a ball straight up into the air. After it leaves your hand, at what point in its flight does it have the maximum value of acceleration? a. Its acceleration is constant everywhere b. At the top of its trajectory c. Halfway to the top of its trajectory d. Just after it leaves your hand e. Just before it returns to your hand 4. A ball is thrown straight upward with some initial speed. When it reaches the top of its flight (at a height h), a second ball is thrown straight upward with the same initial speed. Where will the balls cross paths? a. At height H b. Above height H/2 c. At height H/2 d. Below height H/2 e. At height 0 5. You throw a ball upward with an initial speed of 10 m/s. Assuming that there is no air resistance, its return speed is 10m/s downwards. True or False? a. True b. False 6. A small cart is rolling at constant velocity on a flat track. It fires a ball straight up into the air as it moves. After it is fired, what happens to the ball? a. It depends on how fast the cart is moving b. It falls behind the cart c. It falls in front of the cart d. It falls right back into the cart 7. From the same height (and at the same time), one ball is dropped and another ball is fired horizontally. Which one will hit the ground first? a. The “dropped ball” b. The “fired” ball c. They both hit the ground at the same time d. It depend on how hard the ball was fired e. It depends on initial height 8. A projectile is launched from the ground at an angle of 30°. At what point in its trajectory does this projectile have the least speed? a. Just after launch b. At maximum height c. Just before hitting the ground d. Halfway between the ground and the highest point e. Speed is always constant 9. You’re on the street, trying to hit a friend with a water balloon. He sits in his dorm room window above your position and is aiming at you with HIS water balloon! You aim straight at him and shoot and he does the same in the same instant. Do the water balloons hit each other? a. yes, they hit b. maybe—it depends on the speeds of the shots c. the shots are impossible d. no, they miss e. not really sure 10. A hockey puck slides on ice at constant velocity. What is the net force acting on the puck? a. More than its weight b. Equal to its weight c. Less than its weight but more than zero d. Depends on speed of the puck e. Zero 11. You put your book on the bus seat next to you. When the bus stops suddenly, the book slides forward off the seat. Why? a. A net force acted on it b. No net force acted on it c. Gravity briefly stopped acting on it 12. From rest, we step on the gas of our Ferrari, providing a force F for 4 secs. During this time, the car moves 50 m. If the same force would be applied for 8 secs, how much would the car have traveled during this time? a. 250m b. 200m c. 150m d.