A skydiver with mass 75 kg jumps out of an airplane that is 5 km above the ground. Aside from gravity (assume constant -9.8 m/s^2) the only force on the skydiver is air resistance, which we will assume is ku in the direction opposing motion. The conventional wisdom is that terminal velocity for a skydiver is 55 meters per second. If that's true for our skydiving friend, then what is the value of k?

Q: You throw a baseball straight upward. If you do not ignore air resistance, how does the time…

A: Given information: A baseball is thrown upward vertically.  We have to compare the time required to…

Q: A 1,322-kg car starts from rest at the top of a driveway 6.27 m long that is sloped at an angle of…

A:

Q: A toad with mass of 280 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: When the toad with a mass of 280 g leaps into the air to catch a fly and the toad's jump was at an…

Q: When installing a Red Carpet for the Oscars, workers found that if they push the carpet roll (image…

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Q: A submarine dives 124m at an angle of 15 degrees below the horizontal. What are the horizontal and…

A: Given: distance, 24 m Angle, 150 To Find: Horizontal and vertical component DIAGRAM:

Q: A man pushes an object to the right and exerts a force which has a horizontal compotent of F = 33 N.…

A: External force on the body F = 33 NFrictional force fs = 15 NMass of the object m = 31 kg.Given time…

Q: At high speeds, the force of air resistance acting on an object is proportional to the square of the…

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Q: The parachute on a race car of weight 8010 N opens at the end of a quarter mile run when the car is…

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Q: On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short…

A: Given: m = 18,100 kgu=0 m/sv=65 m/st=2.7 s

Q: SCSU physics and astronomy student club has a recently established tradition of pumpkin drop, from…

A: According to the Newton's laws of motion , the final velocity (v) and the displacement () are…

Q: A scale in the elevator’s floor measures the weight of the passengers, and it has the correct value…

A: Given, a situation where an elevator moves up with a constant speed of v=3.2 m s-1.   Recall that,…

Q: A 1320 kg car skids to a halt on a wet road where μkinetic = 0.32. How fast (in m/s) was the car…

A: Solution: Given: A car is braked to stop it. You are required to find the initial speed of car. m =…

Q: A particle of mass 1.2 kg is acted on by forces F, = 18î N, F, = -11î N, and F, = 9.0j N. What is…

A: Given data: Mass (m) = 1.2 kg F1→ = 18i^ N  , F2→ = -11i^ Nand F3→ = 9.0j^ N Required: The…

Q: A 2.3 kg toy car is accelerated from rest by a net force shown in the graph. The approximate speed…

A: By work energy theroem: Work done by force = gain in kinetic energy of toy car Work done by force =…

Q: A rock with mass 2 kg is thrown upwards with an initial speed of 19 m/s. Air resistance is to speed,…

A:

Q: A 1,900 kg car is slowed down on the high way from 50 m/s to 36 m/s over a distance of 50 m (did the…

A: Given:- A mass of the car m = 1900 kg  the velocity of the car is v1 = 50 m/s v2 = 36 m/s  Distance…

Q: A 1,652-kg car starts from rest at the top of a driveway 7.03 m long that is sloped at an angle of…

A:

Q: a 18,100-kg jet from 0 to 65 m/s in 2.7 s. (Assume the catapult acts in the positive horizontal…

A: mass of jet = 18100-kg  Initial velocity vi = 0 m/s Final velocity vf = 65 m/s  t = 2.7 s.  To find:…

Q: On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short…

A:

Q: player hits a ball with a speed of 39 m/s at an angle of Ɵ= 54 at a place where gravity is equal to…

A: We use equation of motion to solve these problems

Q: Consider the folowing situation: A 2 kg box on an inclined frictionless table pulled up the incline…

A: Given data:  The given mass of the block, m=2 kg. The angle of the inclined plane, θ=15°.

Q: An impala is an African antelope capable of a remarkable vertical leap. In one recorded leap, a 45…

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Q: You throw a baseball straight upward with speed v0. When the ball returns to the point from where…

A: Gravitational force is one of the conservative forces. If air resistance is absent, then only…

Q: A jet plane with a mass of 246 tonnes travels east at 263 m/s. (1 tonne = 1000 kg = 1 Mg.) Air…

A: Velocity is the rate of change of the distance of an object with time. It gives us information on…

Q: What is the “mean speed”, or average velocity, of the above falling object during the first 4…

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Q: Five identical objects, A through E, are launched simultaneously from the ground. Air resistance can…

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Q: The 1.5 Mg = 1,500 kg sports car has a tractive force of F = 4.5 kN = 4,500 N. If it produces the…

A: The mass of the car, m=1500kg The tractive force, F=4500 N The velocity of the car, v=-0.05t2+3t m/s

Q: The acceleration of a particle moving along the 7. x-axis is given by the function a, = -7 ť + 4 t*…

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Q: An object of mass 20 kg is released from rest and allowed to fall under the influence of gravity.…

A: Write the given values to the suitable variables.Here, , and are the mass, air resistance force,…

Q: Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 10,400 kg.…

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Q: A net force of 3,000.0 N accelerates a car from rest to 37.4 km/h in 5.00 s. (a) What is the mass of…

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Q: A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is…

A: Given-h=1.5 mm=1.5 mθ=260g=9.81 m/s2

Q: jet aircraft with a mass of 4,650 kg has an engine that exerts a force (thrust) equal to 60,800 N.…

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Q: A flea jumps by exerting a force of 1.17 x 10-5 N straight down on the ground. A breeze blowing on…

A:

Q: A 1.4 gram bullet is shot into a tree stump. It enters at a velocity of 341 m/sec and comes to rest…

A: To determine,the force on the bullet during impact.given,time to strike the stump(t)=0.00032…

Q: A ball with mass 0.75 kg is thrown upward with initial velocity 25 m/s from the roof of a building…

A:

Q: The muzzle velocity of a typical 500 g spud is 25 m/s . The force given by the spud is K/(x+.09)…

A: Work done on spud = change in kinetic energy                ∫F→.dS→ =KFinal-KInitial…

Q: If a man has thrown a stone of mass 600g straight up 5 m in the air in this case what must be the…

A: Given: Mass of stone m=600 g, Height the stone reaches is h=5 m. Required: Initial velocity of the…

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…

A: Given: The mass of the object is 5.1 kg. P→=-2.1i^+4.25k^ N The velocity of the object is constant.

Q: On Earth at sea level, a rope can sustain a maximum force of 85.7 N before breaking.  What is the…

A: Here, it is given that, the maximum force that can be sustained by rope before breaking is 85.7 N.…

Q: THOSAER o. L.T A 10 T - You are pulling a 39 kg box on a level floor by a rope attached to the box.…

A: If box is moving with constant speed, acceleration acting on it must be zero and hence net force is…

Q: A force of 1600 N acts parallel to a ramp to push a 300-kg piano into a moving van. The ramp is…

A: Force , F = 1600 NMass of piano , m = 300KgInclination of ramp ,θ = 20°

Q: A 40 kg wooden crate is being pulled across a wooden surface by a force (of magnitude F) that is…

A: Mass of the wooden crate is M = 40 kg  Coefficient of kinetic friction is uk = 0.3  Coefficient of…

Q: a 2 kg golf ball moves along an x axis according to x(t) = 10t^3 - 2.80t^2 + 7.4t +15 , with x in…

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Q: A rope is attached to Box A, and it is pulled on a rough surface due east with friction. The mass of…

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Q: Fnorm μ=0.20 30° 111= a= ΣF= Fnorm (normal force) = Ffrict (force of friction) m (mass) = a…

A: Fgrav = 420 N θ = 30oμ = 0.20

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: