A-2kg object moves along the x-axis from x=0 to x=4 under the influence if varying force shown on the graph. If at x=0m the object speed vi=3.2m\s. Then it speed in(m/s) at x=3m is close to?

Q: While a roofer is working on a roof that slants at 42.0 ∘∘ above the horizontal, he accidentally…

A:

Q: A 65-kg skier with an initial speed of 11.2 m/s coasts up a height h=2.6-m high rise as shown in the…

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Q: A roller starts from rest at the highest point of the truck 30m above the ground. What speed will it…

A: Using the conservation of energy we will solve the given problem.

Q: A cart which has a mass of 20 kilograms slides down a frictionless slope of a hill. If the cart…

A: Given data:  Mass (m) = 20 kg Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 15 m/s…

Q: In the physics Lab the students release a 0.800 kg cart from the top of a ramp. It reaches a speed…

A: PEtop=KEbottommgh=0.5mv2h=0.5v2g

Q: m1 Iww m2 Lo.o

A: mass of the cart, m1=5 Kgheight of the cart, h1=2.2 m velocity of the cart m1 is vmass of the cart…

Q: A skateboarder with a mass of 90 kg is skating towards a ramp at 5 m/s. The skater begins to move up…

A: a) Lets apply energy conservation to solve this question:- Ei= Ef => Ki + Ui = Kf + Uf => 0.5…

Q: a child slides down a slide with a 27 degree incline and at the bottom her speed is percisely two…

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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: What speed must a 7m ladder have if it is to be able to fit between the simultaneously closed doors…

A: proper length of ladder (Lo) = 7 m length of ladder in garage's frame (L) = 5 m

Q: A stone, M = 1 kg is projected from a point, h= 15 m above the ground with an initial speed, v, = 10…

A:

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: If the velocity of a body is halved, its kinetic energy a. decreases 2 times b. decreases 4 times c.…

A: The kinetic energy of a body is given as Here, m = mass of the body v = velocity of the body New…

Q: km Calculate the kinetic energy of a 3.0x 10 kg airplane moving at a speed of 0.18 Round your answer…

A: Given data:  Mass (m) = 3.0×104 kg Speed (v) = 0.18 km/s = 180 m/s Required: The kinetic energy

Q: When a ball of mass m is dropped through a height dif- ference Ah, its potential energy changes by…

A: Given value,

Q: A ball of mass 2.2 kg is raised 8 m above the ground and released. (i) Find the velocity of the ball…

A: Mass of the ball m = 2.2 kg Ball raised above the ground is h = 8 m

Q: A spring is held by cables so that it is initially compressed by 60mm. This spring is further…

A: We are given spring which is compressed to some distance. The spring potential energy gets stored.…

Q: Tesla Model 3 (m=1645kg) has a speed of 26.7km/h at the top of a hill (35.4 m). The motor and brakes…

A:

Q: Question 2) A 6.7 kg object initially starts from rest at the top of a ramp. The length of the ramp…

A:

Q: "Tarzan, who weighs 650N, swings from a cliff at the end of a vine 24 m long. From the top of the…

A: The weighs =650N  To find does the vine brake

Q: A ball is dropped from a height of 8m above the ground. The velocity of the ball when reaching the…

A:

Q: A skier slides down from the top of a frictionless 400 incline of height 215 m.  If she starts from…

A:

Q: A5.0 kg mass is dropped from a height of 10.0 m what is its speed just as it reaches the ground?

A: Given:-  The mass of the object is m = 5.0 kg  The height of the object is h = 10.0 m  Find :-  its…

Q: The 25-kg package has a speed of 1.5 m/s when it is delivered to the smooth ramp. After sliding down…

A: We will use conservation of energy and assume zero friction

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:

Q: A ball of mass 0.310 kg is thrown upward, rising 12.1 m above the point at which it was released…

A: Mass of the ball = 0.310 kgheight achieved by the ball H = (12.1+0.215) m = 12.315 mHand moves by…

Q: A car is parked at the top of a 70-m high hill. It slips out of gear and rolls down the hill. How…

A: solution as

Q: A 5.0 kgkg wooden sled is launched up a 25 ∘∘ snow-covered slope with an initial speed of 10 m/sm/s.…

A: mass m = 5.0 kg slope is 25o  the slope is covered with snow. Therefore no presence of friction. The…

Q: A 1000kg car moving horizontally at 20m/s plows into a bank of sand and comes to a stop in 5s what…

A:

Q: While a roofer is working on a roof that slants at 38.0 ∘∘ above the horizontal, he accidentally…

A:

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

A:

Q: 1 kg is released from height h, = 12 m. Its path is withor 1) In Figure, a block with mass m =…

A: Given that: Mass of the block, m=1 kgInitial height, h1=12 mPath length between B to C, d1=12…

Q: If the speed of a car is increased by 95%, by what factor will its minimum braking distance be…

A: Consider the initial speed of the car is u.

Q: BOX 1.25m 34° Assuming no friction and the box starts at rest, what will be the speed of the box at…

A:

Q: How much kinetic energy does a 1.7 kg discus have if its velocity is:  a) 27 m/s  b) 13 m/s  Answer…

A: The kinetic energy is,(a) KE = 619.65 J(b) KE = 143.65 JExplanation:Mass of the discus, m = 1.7 kg…

Q: A 2,000 kg car is traveling at a rate of 40 m/s when an external force of 22,750 N, opposite in…

A:

Q: (a) The principle of work and energy is given as: T1 +2 U1-2 = T2 Explain what are T, , £ U1-2 and…

A: The principle of work and energy is given as, T1+∑U1-2 = T2 TO DETERMINE: (a) Explain is T1, ∑U1-2,…

Q: A 6.76 kg disk makes 4.00 rev starting from rest. Calculate the radius of the disk if it has a…

A: The expression for rotational kinetic energy, KE=12Iω29.89=12×I×(4×2×3.14rad/s)2 I=0.0313kg/m2

Q: Your friend throws a stone that has a mass of 4kg straight down from the top of a 175m tall building…

A:

Q: A weight lifter lifts a 350-N set of weights from ground level to a position  over his head, a…

A: Given : F = 350 N d = 2.00 m

Q: A 2-meter chain is placed on a table with heigh 1m , in a way that one end of the chain touches the…

A: SOlution: given thatL =2 m l = 1 m

Q: Question 10) Sasha pushes a 15 kg cart full of donated books through a 5.0 m fong starting area. The…

A: Given data The mass of the cart is m = 15 kg The starting distance of the cart is d = 5 m The…