a) A bicycle rider accelerates from rest towards the race’s finish line. If a = 0.25 m/s^2, how much time does it take for the rider to attain a velocity, v = 100 m/s?   b) If the bicycle and rider have a mass, of m = 80 kg, what is the power output when the velocity is achieved?

Q: You push a 20.0-kg crate at constant velocity up a ramp inclined at an angle of ?=34.0∘ to the…

A: Mass = m = 20 kg Angle = 34 Distance = S = 3 m

Q: A 4 kg ball falls from height of 23 m. What willbe potential energy of the ball after 0.8 second?…

A:

Q: A 71.1 kg runner has a speed of 3.30 m/s at one instant during a long-distance event. (a)What is the…

A: The mass of the runner, m=71.1 kg   The speed of the runner, v1=3.30 m/s

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A:

Q: A ball is dropped from 16.2 ft above the ground. Assume that air-drag is negligible in this case.…

A: Given data :- height H = 16.2 ft

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A: The kinetic energy of the car before the collision is given as, The kinetic energy of the car after…

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A: Given, Acceleration vs distance graph

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A:

Q: Quick Start: A car accelerates from 0 to 43.2 m/s in 4.67 s. The mass of the car is 2.04e+03 kg. (a)…

A:

Q: A 4 kg ball falls from height of 23 m. What willbe potential energy of the ball after 0.8 second?…

A:

Q: (a) How long (in s) will it take an 865 kg car with a useful power output of 38.0 hp (1 hp = 746 W)…

A: Work energy theorem formula: W=change in kinetic energy     =∆K      =Kf-Ki      =12mvf2-12mvi2…

Q: Adam drove a bike 1260 m with an average speed of 115m/s. Suppose he applied the brakes to reduce…

A: According to the work-energy theorem, the work done by the brakes will be equal to the change in…

Q: Gurtej was driving his car at 120 km/hr when he decides to brake. His car glides to rest over a 26.4…

A: Write the given values with the suitable variables. u=120 km/hr=120×10003600 m/s=33.33 m/sv=0…

Q: B) 3.20 m 9.00 m

A:

Q: A running 53-kg cheetah has a top speed of 28 m/s. (a) What is the cheetah's maximum kinetic energy?…

A:

Q: an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at a constant…

A: Given data:  Weight (mg) = 400 N Height (h) = 2.20 m Time (t) = 1.60 s Required: The output power in…

Q: A 9 kg ball is dropped from a height of 3.0 m.  Determine the speed of the ball just before it hits…

A: According to the work Energy theorem W=12m(v2-u2)  where u= initial velocity v= final velocity m=…

Q: A0.653-kg basketball is dropped out of a window that is 5.01 m above the ground. The ball is caught…

A:

Q: A worker drops an 8.00 kg box through a ramp with a 30.0 degrees tilt. The box slides about 2.50 m…

A: Write a given values of this question. m=8.0kgθ=30∘d=2.50mf=23.0Nu=0m\s

Q: Is disregarding any frictional or air resistance forces. (a) What will the gravitational potential…

A:

Q: A running 40-kg cheetah has a top speed of 31 m/s. (a) What is the cheetah's maximum kinetic energy?…

A: Answer:-  Given  Mass(m) = 40 kg  Speed (V) = 31 m/s  (a) We know that  Kinetic energy (K.E) = (1/2)…

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of…

A: Given            mass = m= 80.1 kg          inclination =θ=600          μk= coff. of friction =0.1

Q: A container is thrown vertically downwards, at the moment it is thrown it has a kinetic energy of…

A: According to conservation of total mechanical energy, the sum of kinetic energy and potential energy…

Q: A machine applies a force on a box of mass 5.00 kg. The force varies along its path as shown in the…

A: (a)   The net work-done on the box can be calculated as,

Q: A 5 kg ball falls from height of 28 m. What willhe potential energy of the ball after 1.2 second?…

A:

Q: A 1600 kg car accelerates from rest to a speed of 40.0 m·s−1 in 6.00 s. a)  Calculate the work done…

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Q: Work= force times distance: W=Fd  Part A: Calculate the work done in ligting a 460-N barbell 1.8m…

A: a)The work done is,

Q: 5. Starting from rest, a 5.00-kg block slides 2.50 m down a rough 30.0° incline. The eoeffieient of…

A: Explanation and solution shown in the picture below ?

Q: 3. A force of 10 N is applied to a small cart for a distance of 2.0 m. (a) What work is done on the…

A:

Q: A 71.6 kg runner has a speed of 4.70 m/s at one instant during a long-distance event.   (a) What is…

A: The kinetic energy is given by  K= 0.5 mv2  According to the work energy theorem, the change in…

Q: A 67.1 kg runner has a speed of 5.30 m/s at one instant during a long-distance event. (a) What is…

A: Kinetic energy of an object with mass m moving with speed v is given as:          K.E=12mv2 Work…