You throw a basketball straight up into the air with an initial velocity of 5.6 m/s. The ball leaves your hand 1.2 meters above the ground. It moves upwards, stops, and then goes all the way down until it hits the ground (below the height you threw from). A. Use conservation of energy (and not the kinematics equations) to calculate the velocity of the ball the instant before it hits the ground.

Q: a.An atwoods machine consists of two blocks, A (m=1.3 kg) and B (m=8.7kg). Block B is released from…

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Q: ame speed when they reach the ground. b. Both rocks have the same kinetic energy whe

A: Heavy rock and light rock are dropped from the same height and experience no significant air…

Q: A 1.8 kg book has been dropped from the top of the football stadium. Its speed is 4.8 m/s when it is…

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Q: The friction and air resistance were ignored in part A, but the normal force was not. Why it is true…

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Q: An accelerating object of mass m=2 kg is fired with an initial speed v=8 m/s at a starting point. If…

A: Given data: Mass m =2 kg Velocity v=8 m/s2. Final Kinetic energy =268 J

Q: 2. A basketball of mass 0.0400 kg is dropped from a height of 5.00 m to the ground and bounces back…

A: The mass of the basketball is given as, m = 0.04 kg The initial height from which the ball releases…

Q: A 0.60 kg rubber ball is thrown into the air. At a height of 30 m above the ground, it is travelling…

A: Given: Mass,m=0.60kgAcceleration due to gravity,g=9.8m/s2Height,h=30mVelocity,v=18m/s An object's…

Q: A rope with 30 N tension pulls a 10 kg case 3 m across a horizontal floor starting from rest. The…

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Q: 2. A 45.0 kg boy is initially seated on the top of a hemispherical ice mound of radius 20.0 m. He…

A: Given data: The mass of boy is m=45 kg. The radius of mound is r=20 m.

Q: . What is the speed of the block and bullet when they first start moving together?  b. What is the…

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Q: A 2.3 kg box, starting from rest, is pushed up a ramp by a 10 N force parallel to the ramp. The ramp…

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Q: Let's say the Earth moves around the Sun in a circular orbit with a constant speed (neither is…

A: The correct answer is B. The work done on the Earth is zero, since the force of gravity is always…

Q: A hammer has a mass of 2.0kg and is moving horizontally at a speed of 6.0 m/s when it strikes a…

A: Mass of the hammer, m=2.0 kg Speed of the hammer, v=6.0 m/s. Upon hitting the nail drives 2 cm…

Q: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at a constant speed by a rope…

A: Draw the free-body diagram of the sledge.

Q: 2. The graph shows the x component of the net force on an object versus position. The work done by…

A: Solution:-We know that The work done is given as,W= FdWhere F - force d - displacement

Q: Part A Ignoring air drag, what is the takeoff speed of such a flea? Express your answer in meters…

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Q: A diver of mass 68 kg stands on a diving board 5.0 m above a pool. At the moment of the jump, the…

A: mass of diver = 68 kg height of diver above the surface of water = 5 m Initial energy provided by…

Q: Dr. B is bouncing a 0.245 kg playground ball in his office one day. He drops the ball from a height…

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Q: A bicycler is moving at 8m/s when they reach the top of a 20m high hill. They coast 15m to the…

A: Given:Velocity of the biclcler at the top = 8 m/sVelocity of the bicylcler at 15 m downward from the…

Q: 2. A basketball of mass 0.0400 kg is dropped froma height of 5.00 m to the ground and bounces back…

A:

Q: Superman can throw a ball (mass 145 g) 1000 m/s. Suppose Superman throws a ball straight up into the…

A: Given data *The mass of the ball is m = 145 g = 0.145 kg *The speed of the ball is v = 1000 m/s *The…

Q: c) Figure 1 shows a small cart of mass 5 kg moving on the frictionless track with a speed of 10 ms¹…

A: The answer is given below Explanation:Step 1:(i) 250 J(ii) 14.07 m/s(iii) 152 JStep 2:Step 3: Step…

Q: The potential energy of an interaction is given by U(x)=ax², where a = +6.4 J/m². Initial speed of a…

A: Given: U(x)=ax2, a=+6.4 J/m2 m=0.79 kgv=2.63 m/s

Q: A block slides up an inclined plane. Friction is present between the block and the plane. Which of…

A: Given that a block is sliding up an inclined plane. There is a force of friction acting between the…

Q: 1. A block is accelerated with a = 8. The initial velocity of the block is VF 2 m/s. A. If the block…

A: Given: The initial velocity of the block is 2 m/s. The acceleration of the block is 8 m/s2. The time…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.