An outfielder throws a 0.148 kg baseball with velocity 30 m/s at 25° above horizontal. Ignoring air resistance: what KE did the ball have, at its peak (highest point)?

Q: A 63 kg skier starts from rest at height H = 17 m above the end of a ski-jump ramp (see the figure).…

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Q: A softball having a mass of 0.25 kg is pitched horizontally at 120 km/h By the time it reaches the…

A: Given, Mass of softball is 0.25 kg and speed is 120 km/h and it slowed by 10% and distance between…

Q: A child is practicing for a BMX race. His speed remains constantas he goes counterclockwise around a…

A: a)The child is moving in anti-clockwise direction.

Q: A stationary soccer ball of mass m = 0.76 kg is kicked with a constant force of F = 11 N. The…

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Q: A projectile is fired vertically from the earth's surface with an initial speed of 9.33 km/s.…

A: Using energy conservation   (1/2)mv^2-(GMm/R)=-(GMm/d) v=9.33 km/s=9330 m/s   (1/2)v^2-(GM/R)=-GM/d…

Q: A 145 g baseball is dropped from a tree 11.0 m above the ground. (a) with what speed would it hit…

A: Given: In this question, the given details are, The given mass value is M=0.145 kg, And the given…

Q: An 8 kg object is placed on the top of a scale (balance) inside the elevator. If the elevator…

A: According to Newton’s second law, the sum forces acting on a mass m placed on elevator, which is…

Q: = A small block slides without friction up and over the icy hill shown in the figure below. The…

A: Given, The distance of the landing point from the cliff,d=10.68 m The height of cliff, h=3.86 m The…

Q: A baseball is thrown vertically upward with an initial velocity of 9 m/s. Neglecting air friction,…

A: The given data are: u=9 m/sv=0 m/s Here, u denotes the initial velocity of the ball, and v denotes…

Q: In a mountain region, from the border from the edge of a cliff, a man throws a rock that has 1kg of…

A: Given :  Mass of rock = 1 kg Angle = 30 degree Initial velocity = 12 m/s    g = 9.81 m/s2  time of…

Q: A 12.0 kg mass is dropped from a hot air balloon at a height of 345 m above the ground. Find it's…

A: Given : Mass dropped from the hot air balloon, m     =   12.0 kg Height at which the mass is…

Q: A physics professor wants to build a spring-based nerf launcher.  (a) Ignoring air resistance (which…

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Q: 3. An object of mass, m = 56 kg starts to slide from rest on a curved ramp from height, H = 37 m…

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Q: A golf ball bounces down a flight of steel stairs, striking several steps on the way down, but never…

A: Ball is moving in the gravitational field of the earth and because of it it will experience a force…

Q: Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. If his arms are capable of…

A: The objective of the question is to find the maximum speed Tarzan can tolerate at the lowest point…

Q: Consider a 3.2 kg block that is connected to the surface of the Earth with a vertical spring that…

A: Given data: mass of the block, m = 3.2 kg Spring constant, K = 760 N/mNatural length of spring, L =…

Q: You drop a 2.20 kg book to a friend who stands on the ground at distance D = 15.0 m below. Your…

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Q: At the Earth's surface, a projectile is launched straight up at a speed of 7.7 km/s. To what height…

A: Given,  Speed = 7.7 km/s We need to calculate,  Height =?

Q: An object of mass, m = 56 kg starts to slide from rest on a curved ramp from height, H = 37 m above…

A: (a) According to the conservation of energy, the initial potential energy covert to the kinetic…

Q: A 0.15 kg baseball is thrown horizontally (parallel to the ground) from a height of 2 m with an…

A: UH=25 m/sUv=0 m/sR=UHt18=25×tt=1825t=0.72 s

Q: You drop a ball from your roof of your house. If the ball is 0.8 kg, and the roof is 7 m above the…

A: Given that u=0, h=7m, Using v^2=u^2+2ah v^2= 2×9.8×7 v=sqrt(137.2) V=11.7 m/s

Q: 6.2. A baseball pitcher throws a pitch horizontally at 30 m/s. Assuming air friction is negligible…

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Q: An 80.0 - kg skydiver jumps out of a balloon at an altitude of1.00 x 103 m and opens the parachute…

A: (a). according to the work energy theorem in the entire trip

Q: A child starts from rest and slides without friction from a height of h = 7.4 m along a slide next…

A: According to the conservation of energy, the velocity of girl when she leaves slide is…

Q: John is standing on a boat dock at the water's edge on a hot summer day throwing stones into the…

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Q: Usain Bolt grabs a rope hanging vertically from an overhead bar when he is running at 10.44 m/s. How…

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Q: Keep the track tilted at 7∘∘ with the horizontal, at let the cart roll downwards. The length of the…

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Q: A 250 kg roller coaster is at the top of a hill with a velocity of 5.60 m/s from a height of 70.0 m…

A: Energy Conservation: the law of energy conservation states that the total energy of an isolated…

Q: Jeff of the Jungle swings on a 7.6-m vine that initially makesan angle of 37° with the vertical. If…

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Q: A 2kg hockey puck on a frozen pond is given an initial speed of 20 m/s. If the puck always remains…

A: Data Given ,  Mass of the hockey puck ( m ) = 2 kg  Initial speed ( u ) = 20 m/s Displacement ( s )…