Two identical stones are thrown from the top of a tall building. Stone 1 is thrown vertically downward with an initial speed of v, and stone 2 is thrown vertically upward with the same initial speed. Neglecting air resistance, how do their speeds compare on hitting the ground?

Q: A 261 kg ball from a demolition machine is propelled sideways until it is 4.83 m above its lowest…

A: Given : Mass of a ball (m) = 261 kg Height (h) = 4.83 m

Q: Mt. Everest is more than 8 000 m high. How fast would an object be moving if it could free fall to…

A: Given data, Height of the Mt. Everest = 8000 m

Q: Problem One. A daredevil on a motorcycle leaves the end of a ramp with a speed of 25.0 m/s. If his…

A: Given initial speed u=25m/s and speed at highest point is vh=18m/s. Let's assume the maximum hight…

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A: ,Given , height of the hill h= 456m Mass. Of the roller coaster =4500 kg To find, Velocity of roller…

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A: a) Write the work-energy equation and substitute the corresponding values to calculate the work done…

Q: 2. Figure depicts a rider on a water slide. The rider drops from a 32 m high starting point until…

A: initial height = 32 mlet the mass = m

Q: A 2.8 kg object is dropped, from rest, from a height of 15.5 m above the ground. Assuming…

A: Given that,Mass of an object :m = 2.8 (kg)Height : h = 15.5 (m)Here we need to find the kinetic…

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A:

Q: Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average…

A:

Q: A 145 g basketball is dropped from a tree 12.0 m above the ground. with what speed would it hit the…

A:

Q: You are curious about how the human heart is able to pump blood up to the brain while standing up,…

A: We are given mass of blood which is pumped to brain each heart beat. We are also given the height…

Q: A 60.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in the…

A:

Q: A block of mass 0.31 kg is released from rest at point A and slides down a curved slope to point B.…

A:

Q: uestion 16 n roller coaster is moving at 18 m/s at the top of the first hill (h= 56 m). Igne…

A: According to conservation of energy  Total energy of isolated body remains constant. We can use…

Q: A 50-kg skier with an initial speed of 13 m/s coasts up a 2.5-m-high rise as shown in the figure.…

A:

Q: Two identical stones are thrown from the top of a tall building.Stone 1 is thrown vertically…

A: Given  Speed of stone 1 u =-v speed of stone 2 u'=v height h

Q: At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at…

A: The law of energy conservation,

Q: "Two identical balls are thrown directly upward, ball A at speed v and ballB at speed 2v, and they…

A: Given data- Speed of ball A is = V Speed of ball B is =2V At maximum height final velocity of both…

Q: A block of 2 kg slides down a ramp with a height of 1.5 m, then hits and sticks to another block of…

A: Given: The mass of the first block is 2 kg. The mass of the second block is 4 kg. The height of the…

Q: Tall Pacific Coast redwood trees (Sequoia sempervirens) can reach heights of about 100 m. If air…

A: Given Height from the object is dropped = 100 m Air resistance is negligible So, only gravity acts…

Q: A small block moves at point A with a speed of 7 m/s. Its path is without friction until it reaches…

A:

Q: An object weighing 2 kg was dropped from the ground at a height of 90 meters. What is the height of…

A:

Q: 21. At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts…

A: Given data:  Initial velocity (Vi) = 0 m/s Height (h) = 2.31 m Required: The final speed at the…

Q: The diagram shows a crate with mass m = 25.9 kg being pushed up an incline that makes an angle φ =…

A:

Q: A sled is initially given a shove up a frictionless 23.0° incline. It reaches a maximum vertical…

A: The kinetic energy at the bottom of the inclined plane is equal to potential energy at the top of…

Q: The collar in the figure is smooth and has a mass of 2 kg. It is released from its unstretched…

A:

Q: As a block of mass 7 kilograms drops from the edge of a 40-meter-high cliff it experiences a loss of…

A: Given: The mass of the block is 7 kg. The height of the cliff is 40 m. The loss of energy due to air…

Q: A 0.086kg robin, perched on a power line 6.1m above the ground, swoops down to snatch a worm from…

A: Mass of robin,m=0.086 kg Height of the power line,h=6.1 m Tree branch height,H=8.2 m

Q: A roller-coaster car of mass 1.50 × 103 kg is initially at the top of a rise at point Ⓐ. It then…

A: Given,

Q: The famous cliff divers of Acapulco leap from a perch 35 m above the ocean. How fast are they moving…

A: Details Given: Height of cliff = 35m The velocity of cliff divers is calculated from the formula of…

Q: A 2.8 kg object is dropped, from rest, from a height of 15.5 m above the ground. Assuming…

A:

Q: onsider a cannon-ball of mass 8 kg fired vertically up from the ground with an initial speed of 120…

A: Given the mass of cannon-ball = m = 8 kg the initial speed in upward direction = u = 120 m/s.…

Q: A 30.0-kg child starting from rest slides down a water slide with a vertical height of 10.0 m. What…

A: mass of child(m)=30 kg vertical height(h)=10m as child is coming down its potential energy is…

Q: A 1943 kg rollercoaster is released from an initial height of 52 m above the ground and will…

A: Write the energy conservation equation between the initial position and point A.…

Q: A cat's crinkle ball toy of mass 28 g is thrown straight up with an initial speed of 5 m/s. Assume…

A: Data Given,  Mass of the ball ( m ) = 28 g = 28 × 10-3 kg Initial speed ( v ) = 5 m/s  Air drag is…

Q: how fast would a 30 kg child be moving from top to bottom on a zipline starting at a height of 43.6…

A: