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 3 kg ball falls from height of 14 m. What willbe potential energy of the ball after 1 second?  Use…

A: Given that, The mass of a ball, m = 3 kg It falls from a height of 14 m. First we find the position…

Q: A 73.0-kg skier starts from rest from the top of a 49-m high slope. What is the speed of the skier…

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Q: (a) How much work is done in lifting a 1.3-kg book off the floor to put it on a desk that is 0.9 m…

A: The work done is the product of force and displacement along the force direction.

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: 71.0-kg skier starts from rest from the top of a 55-m high slope.  What is the speed of the skier on…

A: Given: The mass of the skier is 71 kg. The height of the skier is 55 m. The initial speed of 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: 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: Calculate the Work = F x d done by gravity that pushes the car down the ramp. Which d (distance) do…

A: Analyze the following figure. The ramp’s angle (θ) can be determined as, Here, h and l represent…

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: A 36.3-kg child starting from rest slides down a water slide with a vertical height of 12.0 m.…

A: Given data: Mass of the child (m) =36.3 kg Vertical height (h) = 12 m Need to determine the Childs's…

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: 6 cm 30 nC 2 cm B

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Q: Tim, with mass 68.8 kg, climbs a gymnasium rope a distance of 3.5 m. The acceleration of gravity is…

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Q: What minimum speed does a 180 gg puck need to make it to the top of a 3.10 mm -long, 27.0 ∘∘…

A: Given : m = 180 g = 0.180 kg L = 3.10 m θ = 27°

Q: A parachutist glides to the ground at a rate of 18 feet per second. Complete the work to find this…

A: Given∗The rate  of  parachutist  is v=18 ft/sec   Unit conversion is the method   by which unit of…

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: Find the speed of the object when its height is 100 m.

A: As per our guidelines we can only answer a maximum three sub-parts at a time. Please resubmit the…

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 5.0 kg mass is initially sitting on the floor when it is lifted onto a table 1.15 meters high at a…

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Q: A 34.6 kg child starting from rest slides down a water slide with a vertical height of 21.1 m.…

A: Mass of child, m=34.6 kg Vertical height, H=21.1 m Initial at rest, u=0 m/sLet bottom of slide is…

Q: A car travels 300 km in 6 hours. What is the average speed of the car (in km/hr)? Given: Work:…

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Q: A skier starts at the top of a 23.7-meter hill. Assuming there is no friction and no air resistance,…

A: Free fall motion: When an object moves only under the effect of gravity of the Earth, then the…

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 53.0-kg skier starts from rest from the top of a 65-m high slope.  What is the speed of the skier…

A: In the given question We have to determine the speed of the skier on reaching the bottom.

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: tank in the shape of a right circular cone, apex down, is filled with olive oil weighing 45lbs/ft^3.…

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Q: A 3 kg ball falls from height of 14 m. What willbe potential energy of the ball after 1 second?  Use…

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Q: A parachutist glides to the ground at a rate of 14 feet per second. Complete the work to find this…

A: Given data:  Speed of parachutist = 14 feet per second Required: Speed in miles per hour

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: How to find the speed of a block, in meters per second, just after it leaves the inclined plane?

A: Let us say we have an nclined plane as shown below:

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Q: In a time of T seconds, a motorcycle can accelerate from rest to the speed v. (a) Determine the…

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Q: A 5 kg ball falls from height of 29 m. What willbe potential energy of the ball after 1 second?  Use…

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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…

A:

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.