9. 2 kg glider is traveling toward the right with a speed of 1 m/s on...

9. 2 kg glider is traveling toward the right with a speed of 1 m/s on an air track. A 3 kg glider is traveling on the same track to the left at 2 m/s. If they collide and stick together what speed will they move with?

10. A car with a mass of 1000 kg is stopped at a stop sign. The car accelerates to 20 m/s in 5 seconds. (a) What is the magnitude of the acceleration of the car during those 5 seconds? (b) How far does the car travel during those 5 seconds? (c) What is the magnitude of net force on the car while it is accelerating?

11. A skydiver jumps from a plane, 1 second after opening her parachute the resistive force on her has a magnitude of 1200 N. If the skydiver has a weight of 800 N (and therefore a mass of 80 kg), what are the magnitude and direction of her acceleration?

12. A compact car with a mass of 1200 kg traveling at 20 m/s hits a stationary SUV. The SUV has a mass of 2400 kg. (a) Which vehicle experiences the greater force of impact? Explain your answer. (b) Which vehicle has a greater acceleration during the collision? Explain your answer. (c) Explain what additional information is needed to determine the average force on the compact car during the collision.

13. You throw a ball into the air. At its highest point it comes to rest, is it in equilibrium? Explain.

Expert Solution

genius_generous answered 8 months ago

A 5 kg ball is traveling to the right at a speed of 12 m/s. A 2...

A 5 kg ball is traveling to the right at a speed of 12 m/s. A 2 kg ball is traveling to the left at 30 m/s. They collide in an inelastic collision. What is their final speed? 0 m/s 12 m/s 17 m/s 30 m/s 42 m/s A 2000 kg truck drives the right at a speed of 40 m/s. How many 0.25 kg bullets fired at 350 m/s need to be fired at the front of the truck to stop...

6. A 10.0-kg mass is traveling to the right with a speed of 2.00 m/s on&nbs

6. A 10.0-kg mass is traveling to the right with a speed of 2.00 m/s on a frictionless horizontal surface when it collides with and sticks to a second 10.0-kg mass that is initially at rest but is attached to a light spring that is neither stretched nor compressed with a force constant 80.0 N/m. The system undergoes SHM. A) Find the frequency, amplitude, the period of the subsequent oscillations and the phase angle. B) Find the maximum and minimum ...

A 2.0 kg glider moves in the +x direction at constant speed 2.0 m/s on a...

A 2.0 kg glider moves in the +x direction at constant speed 2.0 m/s on a frictionless horizontal air-track. The second glider of mass 1.0 kg moves in the –x-direction at a constant speed of 2.0 m/s on the same air track towards the first glider. What is the speed of the center of mass of the two gliders right after the collision?

A car is traveling to the right with an initial speed of 20 m/s. The car...

A car is traveling to the right with an initial speed of 20 m/s. The car slows down to a stop in 25 seconds. What is the acceleration of the car?

2. A 10 kg ball moving to the right with a speed of 6.0 m/s collides...

2. A 10 kg ball moving to the right with a speed of 6.0 m/s collides with a 20 kg ball moving to the left at a speed of 4.0 m/s. (a) If this is a head-on, perfectly inelastic collision, what is the velocity of the balls after the collision. Give magnitude and direction. (5 pts.) (b) If this is a head-on collision and the the 10 kg ball moves to the left with a speed of 7.0 m/s after...

A sticky ball of mass 0.0450 kg, traveling with a speed of 22.0 m/s in a...

A sticky ball of mass 0.0450 kg, traveling with a speed of 22.0 m/s in a direction 30.00 below the +x axis collides with another moving ball, of mass 0.0119 kg, traveling in a direction 44.70 above the +x axis. The two balls stick together and keep moving horizontally. The initial speed of the second ball is: a) 59.1 m/s b) 18.9 m/s c) 75.7 m/s d) 30.2 m/s e) 42.6 m/s

Mass m = 0.1 kg moves to the right with speed v = 0.54 m/s and...

Mass m = 0.1 kg moves to the right with speed v = 0.54 m/s and collides with an equal mass initially at rest. After this inelastic collision the system retains a fraction = 0.9 of its original kinetic energy. If the masses remain in contact for 0.01 secs while colliding, what is the average force in N between the masses during the collision? Hints: All motion is in 1D. Ignore friction between the masses and the horizontal surface. You...

A 0.00410–kg bullet traveling horizontally with a speed of 1.00 ✕ 103 m/s enters a 21.0–kg...

A 0.00410–kg bullet traveling horizontally with a speed of 1.00 ✕ 103 m/s enters a 21.0–kg door, embedding itself 19.0 cm from the side opposite the hinges as in the figure below. The 1.00–m–wide door is free to swing on its hinges. (a) Before it hits the door, does the bullet have angular momentum relative to the door's axis of rotation? Yes or No Explain. (b) Is mechanical energy conserved in this collision? Answer without doing a calculation. Yes or...

A truck 'A' of mass 1700 kg traveling east at a speed of 24 m/s crashes...

A truck 'A' of mass 1700 kg traveling east at a speed of 24 m/s crashes into a smaller, 1100 kg parked wagon 'B'. The two vehicles remain joined together after the collision. What is the velocity of the wreck immediately after the collision? Neglect friction against the road. fAns: 14.6 m/s]

A pickup truck with mass 2150 kg is traveling with a speed of 26.6 m/s, while...

A pickup truck with mass 2150 kg is traveling with a speed of 26.6 m/s, while a compact car of mass 1121 kg is traveling in the opposite direction with the same speed. The truck and car undergo a head-on collision and thereafter move together as a single body. What is the change in kinetic energy (AK) of the system consisting of both vehicles? Help me please

Question