QUESTION 6 A ball is dropped from rest. What is (the magnitude of) the velocity of the ball after is has fallen 8 m? (Hint: use the work-energy theorem!) Give your answer in units of meters per second (m/s), but only write down the number part of your answer.
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Q: A 500 g block w/ an a horizontal tabletop a. How far will it b. What is the c tabletop?
A: mass = m = 500 g = 0.5 kg initial speed = Vi= 90 cm/s = 0.9 m/s frictional force = f =0.8 N
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Q: A satellite is traveling through distant space with a speed of 19,000 km/hr. What will happen to the…
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A: Given: Mass of the ship: m = 4.5×105 kg Thrust force F = 900,000 N Resistance force, R= 150,000 v…
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A: Solution
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Q: Wv² A parachutist is falling with speed of 55 m/s when his parachute opens. If the air resistance is…
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Q: A 3,150-kg truck accelerates from 4.2 m/s to 7.8 m/s in 14 s. Whic describes the average force…
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Q: The International Space Station has a mass of approximately 370,000 kg. a. What is the force on a…
A: It is given that, m1=130 kgm2=370000 kgG=6.67×10-11 N.m2/kg2r=22 m
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Q: 366.3 N 17. What is another term for Kinetic Priction? a. Dynamic Friction b. Starting Friction c.…
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Q: 3. A 2kg owl jumps directly upward into the air with a speed of 5m/s, but a wind is blowing which…
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Q: 14. A 3 kg shopping cart experiences a 12 N during a cart race. If the cart accelerates for 10 s,…
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Q: constant force acts on a 5.0 kg object and reduces its velocity from 7.0m/s to 3.0m/s in a time of 3…
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Q: 13. 54-kg box is sitting on the floor of a level railroad car which is moving forward with a speed…
A: mass of box = 54 kg speed = 25 m/sa = 5.6 m/s2
Q: A stone has a weight of 40 N on the Mars, where g = 3.7 m/s?. The mass of the stone is a. 4.08 kg O…
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Q: A car of mass 1200 kg climbs a 300 hill with vertical height of 100 m. If the car has a net forward…
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Q: A 200-N block in contact with a level plane is acted upon by a horizontal force P = 100N. The fk =…
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Q: What is the net force of a cart in a tiled floor if its kinetic friction is 20 N and the frictional…
A: Net force is equal to the difference between applid force minus force due to friction.
Q: 10. How much horizontal force is needed to produce an acceleration of 8 m/sec² on a 75 kg box? A.…
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Q: A ship of mass 4.5 x 10 kg starts from rest under the force a constant propeller with a thrust of…
A: Solution:- Concept and formula used:- 1) According to the Newton's second laws of motion, the net…
Q: A person is trying to lift a box off the floor. The box has a mass of 55kg and the person can lift…
A: In this question a person is trying to lift a box of 55kg , with a force of 300 N.
Q: A 1200 kg car is moving at 30 m/s and comes up to a hill. How high can the car go up the hill before…
A: To solve the question, we will use the conservation of energy.
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