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A 160 lb woman jumps off an 80 lb stationary cart B. Immediately after take-off the...
3. (Impulse/Momentum) A 120 lbs. girl takes a running start and jumps onto a 50 lbs. cart, cart A...
3. (Impulse/Momentum) A 120 lbs. girl takes a running start and jumps onto a 50 lbs. cart, cart A. Her horizontal velocity when she lands on cart A is 15 ft/s. The girl rides cart A until she is 1.5 ft from cart B. She then jumps off cart A towards cart B with a velocity relative to cart A of v-5 ft/s. She leaves the cart at an angle of 25 degrees. Cart B has a weight of 150...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of 0.790 m, and immediately jumps back up into the air. While she is in contact with the ground during the time interval 0 < t < 0.800 s, the force she exerts on the floor can be modeled using the function F = 9,200t − 11,500t2 where F is in newtons and t is in seconds. (a) What impulse (in N · s) did...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of...
Starting from rest, a 68.0 kg woman jumps down to the floor from a height of 0.650 m, and immediately jumps back up into the air. While she is in contact with the ground during the time interval 0 < t < 0.800 s, the force she exerts on the floor can be modeled using the function F = 9,200t − 11,500t2 where F is in newtons and t is in seconds. (a) What impulse (in N · s) did...
4. Energy and Momentum for 15 points: A 200 gram lab cart is initially at rest...
4. Energy and Momentum for 15 points: A 200 gram lab cart is initially at rest on top of a 50 cm ramp, as shown. Note that the wheels are very light and the axle has no friction in it. You push the cart as it moves through a distance of 20 cm with a constant force of 10N in a direction oriented 20 degrees below horizontal. After you stop pushing on the cart, it encounters a ramp, and rolls...
5.) Immediately after take-off an airplane moves with 400 km/h at an angle of 10° with...
5.) Immediately after take-off an airplane moves with 400 km/h at an angle of 10° with respect to the horizontal. A passenger moves from the front of the plane toward the back of the plane with 10 km/h. Determine the velocity of the passenger with respect When reading this problem the first thing is to look for what’s given. Since we see that the velocity is equal to 400 km/h ,and the passenger moves from the front of plane towards...
Note that the answer is not: - 0 m/s^2 - 7.848 m/s^2 A skydiver jumps off...
Note that the answer is
not:
- 0 m/s^2
- 7.848 m/s^2
A skydiver jumps off of an airplane. The plane flies at an altitude of 4 km, and at a speed of 100 km/hr. The skydiver "jumps" by simply letting go of the plane and falling out. Gravity is the only thing affecting their motion until they open their parachute at a height of 2.5 km. After opening their parachute, they experience constant acceleration until they land perfectly, with...
3. (Impulse/Momentum) A 120 lbs. girl takes a running start and jumps onto a 50 lbs. cart, cart A. Her horizontal velocity when she lands on cart A is 15 ft/s. The girl rides cart A until she is 1.5 ft from cart B. She then jumps off cart A towards cart B with a velocity relative to cart A of v-5 ft/s. She leaves the cart at an angle of 25 degrees. Cart B has a weight of 150...
4. Energy and Momentum for 15 points: A 200 gram lab cart is initially at rest on top of a 50 cm ramp, as shown. Note that the wheels are very light and the axle has no friction in it. You push the cart as it moves through a distance of 20 cm with a constant force of 10N in a direction oriented 20 degrees below horizontal. After you stop pushing on the cart, it encounters a ramp, and rolls...
Note that the answer is
not:
- 0 m/s^2
- 7.848 m/s^2
A skydiver jumps off of an airplane. The plane flies at an altitude of 4 km, and at a speed of 100 km/hr. The skydiver "jumps" by simply letting go of the plane and falling out. Gravity is the only thing affecting their motion until they open their parachute at a height of 2.5 km. After opening their parachute, they experience constant acceleration until they land perfectly, with...
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