Messi is keeping his free-kick skills sharp this quarantine by playing football with his neighbour's monkey. From the roof of his house, which is 7 meters above the ground, he kicks a ball horizontally towards his neighbour's house, which is 6 meters away and also has a roof that is 7m above the ground. At the same instance, his neighbour's pet monkey drops off the ledge of his roof to try to catch the ball. Please ignore air resistance, and take g = 9.81m/s²

Q: A 258-gram ball is thrown at a speed of 44.1 m/s from the top of a 41-m high cliff. Determine the…

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Q: A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a…

A: In this case, we can use projectile motion concept because the biker is subjected to no other force…

Q: A ball with a mass of 39 m is released at a height of h above the ground. If we ignore the air…

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Q: A stone, M = 1 kg is projected from a point, h = 25 m above the ground with an initial speed, v = 20…

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Q: A roller coaster at the top of a 65.2m tall hill with a speed of 0 m/s. What is its speed in m/s…

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Q: A ball starts from rest from a hill of height 15.0 meters, when the ball gets to the bottom of the…

A: Given Data: Initial velocity of ball is u=0. The height of hill is h=15 m. The time taken is,…

Q: A 274-gram ball is thrown at a speed of 39.4 m/s from the top of a 42.6-m high cliff. Determine the…

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Q: If a 3.15 kg object is placed on a frictionless incline of 70.5 º and released from rest, what is…

A: Given, mass of the object, m = 3.15 kg angle of inclination of the plane, θ = 70.5° initially the…

Q: A 59 kg skier pushes off the top of a frictionless hill with an intial speed of 3.6 m/s How fast…

A: Solution:   As per the given data,   Mass(m)=59 kg Initial speed(u)=3.6 m/s height(h)=8 m

Q: han on a motorcycle plans to make a jump as shown in the figure. e leaves the ramp with a speed of…

A: u = 32 m/s  ux= 30.4m/s at max height

Q: A 14 kg penguin slides on its belly down an icy, frictionless glacier. If the penguin started from…

A: Write the given values of the problem- Mass=14 kg final speed(vf) vf=14 m/s

Q: Two blocks are connected by a light string that passes over a frictionless pulley as in the figure…

A: Given data, The mass is m1 The second mass is m2 Height of m1 is h.

Q: A roller coaster is moving at 12 m/s at the top of the first hill (h = 45m). Ignoring friction and…

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Q: An electric locomotive accelerates a 650-ton train of wagons to 140 km/h on an uphill line with a…

A: Given, m=650000kg v=140km/h Gradient=10.5% ∆V=30km/h The initial acceleration is, Hence, the…

Q: Use

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Q: A 230-gram ball is thrown at a speed of 40.7 m/s from the top of a 45.1-m high cliff. Determine the…

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Q: A cart travels along a frictionless roller coaster track. At point A, the cart is10 m above the…

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Q: A roller coaster car is approaching the top of a hill with a speed of 7.1 m/s.  The top of the hill…

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Q: Current Attempt in Progress Redesigning a track. The figure below shows a small block that is…

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Q: A roller coaster is moving at 10 m/s at the top of the first hill (h= 63 m). Ignoring friction and…

A: Concept  Apply work energy theorem, Change is Potential Energy=Gain in Kinetic energy

Q: boy throws up a ball in a stationary lift and the ball returns to his hands in 10 s. Now if the lift…

A: The lift's velocity is in no way dependent or impacts the ball's velocity.

Q: A skater skates down a frictionless ramp from a height of 5.0 m. What is his speed at the bottom of…

A: To determine the skater's speed at the bottom of the ramp, we can use the conservation of mechanical…

Q: Two blocks are connected by a light string that passes over a frictionless pulley as in the figure…

A: First draw the free body diagram and solve for acceleration .  Then, using acceleration and height ,…

Q: A kid on a bike goes from the bottom to the top of a 25 m hill. What minimum speed would the kid…

A: h=25 m.

Q: What is its maximum height if there were no air resistance?

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Q: If he leaves the ramp with a speed of 29.5 m/s and has a speed of 27.7 m/s at the top of his…

A: Useful formula: Kinetic energy of an object with mass M & speed v is Ek=12Mv2       ...(1)…

Q: A box slides from rest down a frictionless ramp inclined at 31.0° with respect to the horizontal and…

A: Given: Inclination angle is θ=31° Initially object is at rest on the top of ramp and then it slides…

Q: A cat drops a 0.25 kg fish from the top of a sheer cliff into the water below. The height of the…

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Q: A 54 kg student carrying an 11 kg backpack climbs up 76 steps (each step is 18 cm high) to the 4th…

A: Answer:-  Mass of a student (m1) = 54 kg  Mass of the backpack (m2) = 11 kg  Total mass (M) = (54…

Q: A small block slides down a frictionless track whose shape is described by x>0, The value of d is…

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Q: A box is thrown (at an unknown angle) with a speed of 17.8 m/s from the top of a 28.4 m high cliff.…

A: Initial speed (u) = 17.8 msThe height of cliff (h) = 28.4 m Let the mass of box = m

Q: A 271-gram ball is thrown at a speed of 37 m/s from the top of a 40.9-m high cliff. Determine the…

A: Given data The mass of the ball is given as m = 271 g. The speed of the ball is given as vi = 37…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A:

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: given      y=x2d for x<0      y=-x2d for x>0     d=2.33     initial velocity of block =0m/s…

Q: 33.6-kg child starting from rest slides down a water slide with a vertical height of 14.0 m.…

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Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A:

Q: An object is thrown up from the height h0 with the speed 20 m/s. If the maximum height that the…

A: Given data The initial height is ho The maximum height is h1=30 m The initial speed is u=20 m/s The…

Q: The cliff divers at Acapulco, Mexico, jump off a cliff26.7m above the ocean. ignoring air…

A:

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: The frictionless track is described as, y=x2d for x>0 and y=-x2d for x<0. The value of d is…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: Given values: Equation of y, y=x2d           for x<0y=-x2d       for x>0 Value for d = 2.10 m…

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: A 3.00N rock is thrown vertically. At 14.3m v=24.9 m/s. What is the initial velocity in terms of the…

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Q: A 297-gram ball is thrown at a speed of 43.9 m/s from the top of a 41.1-m high cliff. Determine the…

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Q: - A small hockey lands 6.20 m from the bottom of th

A: Diagram is given as:

Q: An adult dolphin weighs around 1410 N. How fast must it be moving as he leaves the water vertically…

A: The maximum height (h) = 2.30 m Now for the velocity (u) of the dolphin, we use the kinematics…

Q: A ball has a mass of 0.150 kg and is given an initial speed of 20.4 m/s. When the ball is at a…

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Q: If a 3.58 kg object is placed on a frictionless incline of 59.5 º and released from rest, what is…

A: The kinematic equations of motion are-1) v=u+at2) s=ut+12at23) v2=u2+2as where,u is initial…

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.