A car and driver of total mass 1350kg are moving at 30 m/s on a horizontal road when the driver sees roadworks 400m ahead. She brakes, decelerating with a constant force of 600N until arriving at the road works. Find the time elapsed before arriving at the road works

Q: On a planet A ,a box of chocolates weights 3.00N. If the box takes 3.50s to reach the ground when…

A: The gravitational acceleration of the planet A is,Substitute the values, to find the gravitational…

Q: A 500-lb object is released from rest 500 ft above the ground and allowed to fall under the…

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Q: Two balls are thrown vertically, both with an. initial speed of 15 m/s from height of 6 m above the…

A: Given data: The initial speed of both balls, v=15 m/s Height of both balls, h=6 m

Q: A sled and rider, weighing 30 lb and 150 lb, respectively, travel down a smooth slope that has the…

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Q: 2. A 40-lb suitcase has an initial velocity down the ramp of va = 20 ft/s and the coefficient of…

A: in this  question  we use  equation of motion and free body diagram  equation.

Q: In 1992, a 14 kg meteorite struck a car in Peekskill, NY, leaving a 20-cm-deep dent in the trunk.…

A: The specific equation of motion you use depends on the nature of the motion and the forces involved.…

Q: A horizontal force of 93.2N is applied to a 42.5 kg crate on a rough level surface. If the crate…

A: Given: Force = 93.2 N  mass = 42.5 kg acceleration = 1.08 m/s2  To Find : Magnitude of kinetic…

Q: While an elevator of mass 812 kg moves downward, the tension in the supporting cable is a constant…

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Q: A horizontal force of 729 N is needed to overcome the force of static friction between a level floor…

A: Given: The applied force is 729 N. The coefficient of kinetic friction is 0.08. The mass of the…

Q: Three forces are acting on an object moving with an unchanging velocity v=(i+7j) m/s . Two of the…

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Q: A trucks brakes fail while driving down a hill at a speed of 92 km/hr at the emergency ramp shown.…

A: Given: speed of truck= 92km/hr= 25.5555m/s mass of truck is 'M' kinetic energy of truck = 1/2 *M*V2=…

Q: The graph below shows the acceleration vs, time for an object. Choose the correct corresponding…

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Q: Ą block of mass m is moving along a straight line in the a function of time given by: v,(t) = c,t +…

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Q: A 10kg object falls and experiences a drag force which is proportional to the square of the veloc-…

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Q: In a performance test, each of two cars takes 8.4 s to accelerate from rest to 28 m/s. Car A has a…

A: Given Mass of car A is MA=1415 kg Mass if car B is MB=1856 kg Initial velocity of both car vi =0 m/s…

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: Batman is driving his 1900 kg Batmobile down the hill from the Bat Cave. The hill is inclined at an…

A: By fbd of block  MgSin20° + F - ukMgCos20° = Ma  F = M(a + ukgCos20° - gSin20°)  F = 1900 ( 5 +…

Q: A rocket with a mass of 1 ton is launched vertically. Its initial speed at T = 0 is 1200 km/h, its…

A: We are given mass of rocket. We are also given air friction acting on it. We first find the net…

Q: Problem 9: A car has a mass of 1010 kg and is moving in a straight line at a speed of 56.1 km/h.

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Q: You drive an automobile of mass 2.10 x 103 kg from sea level to the top of a mountain 2.05 km high.…

A: Given: mass of automobile m= 2.10× 103 kg Height at which automobile reached from sea level h = 2.05…

Q: A 27.0-kg box is released on a 27 ∘ incline and accelerates down the incline at 0.30 m/s^2 .…

A: component of gravitational force down the incline  = mgSin27° = 27×9.8×Sin27° = 120.12 N  friction…

Q: An empty box is travelling on the conveyor with 0.2 m/s, then 12 kg package is dropped into this box…

A: please see the next step for solution

Q: Determine the acceleration of the masses

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Q: A 1216-lb object is launched from the ground with an initial upward velocity of 70 ft/sec. The…

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Q: MA e.g. A wood block mB is static on smooth table with another block on one ends of it. Now give m…

A: Mass of block A =mA Mass of block B= mB Coefficient of friction=µ          mA=mB

Q: A plane flies 180 miles south, then 170 miles east and finally 250 miles north. What is the…

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Q: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.270 m and then…

A: Given, lower height, hi = 0.270 m final height, hf = 0.940 m

Q: TEACHER A frictionless plane is 10.0 m long and inclined at 30.0°. A sled starts at the bottom with…

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

Q: A 10kg object is initially moving east at constant speed. A net external force of 20N directed west…

A: Given data:  Mass (m) = 10 kg Initial velocity is constant, towards East Force (F) = 20 N, towards…

Q: Question An arrow is shot horizontally with a speed of 19.6 m/s. The time to reach the maximum…

A: As per our guidelines  we are supposed to answer only one question. Kindly repost other question as…

Q: A ball of mass m is shot straight up into the air with an initial speed Vị.

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Q: dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal…

A: GivenHorizontal force applied on block, F=80 NDistance moved by block, s=11 mInitial velocity of…

Q: An airplane flies at a constant altitude of 1200 m and a constant speed of 80 m/s when a 7.0 kg…

A: Required :  The path followed by the ball.

Q: Jill of the Jungle swings on a vine 7.00 m long. (a) What is the tension in the vine if Jill, whose…

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Q: A crate slides down a ramp 24.37 m long inclined at 25.71°. How long will it take to reach the end…

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Q: 0.350 and 0.480. Vehicles of all types travel on the road, from small VW bugs weighing 1110 lb to…

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Q: Three forces act on a particle that moves with unchanging velocity V = (2.2 m/s)i + (-7.8 m/s)j. Two…

A: Since v is constant, acceleration is zero. Fnet=ma   =mdvdt   =m0    =0…

Q: n is traveling at a speed of 50 m/s at an angle of 10o. But the driver noticed that the bridge 300-m…

A: Given:-  The mass of the train is m = 20 Mg  the train is traveling with the speed of v = 50 m/s…

Q: Three forces act on a particle that moves with unchanging velocity F₁ = (2.3 N )î + (3.8 N )Ĵ +…

A: We are given 3 forces. We are given that these 3 forces are acting on particle. They are acting such…