2. What's the net force on a 2 kg mass spinning in a circle with a 1.50 m radius at a frequency of 4 Hz? 3. A car traveling at a speed of 30 m/s rounds a flat curve whose radius is 185 m. Find the coefficient of friction between the tires and the road?

Q: 1). what is the speed of a 14 kN body at rest then falling from a height of 238 m.

A: Given that:-u=0g=9.8 m/s2Falling from Height, S=238 mForce, F=14kN=14×103 N

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A:

Q: FR2: A cat climbs up the side of a tree, tilted at a 10 degree angle relative to the vertical (the…

A: Given, The angle by which the tree is tilted, θ=10° mass of the cat, m=5 Kg

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A: The mass of the watermelon, m=159 kg The height of the building, h=150 m The acceleration due to…

Q: 85° 55° 25° Fig. P2.19 and P2.20 120 N, determine by trigonometry the magnitude and direction of the…

A:

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A: Minimum velocity is defined as that velocity at which the value of Power is minimum . From the graph…

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A: Given data:  Mass of skater(m) = 58 kg Initial height of hill (hi) = 160 m Final height of hill (hf…

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A: Given: The cannonball is fired straight up into the air. And here the given details about this…

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Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5…

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

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Q: An airplane starts from 23.9 m/s and accelerates at 12.2 m/s?. What is its speed at the end of a 319…

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Q: 4) Is the radiation emitted by a grey body lower or higher than that of a black body? Why? 5) How…

A: 4) The radiation emitted by a grey body is lower than that of a black body as the emissive power of…

Q: A 9900 N small car is moved by a 650 N force. If the car starts from the rest, then how fast is it…

A:

Q: 'art (a) Express the capacitive reactance, Xc, in terms of C and w. 78 9 ↑^^ 4 | 5 | 6 Δν, HO max b…

A:

Q: A force of 61 N causes a rock to accelerate at a rate of 4 m/s2. What is the mass?

A: Write the given values of the problem- Force(F) F=16 N Acceleration(a) a=4ms2

Q: m/s 2. 1 At a construction site a worker lifts a cement mixer to the top of a building with a chain…

A: According to Newton's second law F = ma

Q: 16. If a ball rolls 42.0 cm down an incline in 2.40 seconds, it has an instantaneous speed of 17.5…

A: A ball rolls 42.0cm down an inclined surface in .If the instantaneous speed of the ball at a certain…

Q: A 5kg ball is thrown straight into the air at 5 m/s. How high does it travel?

A: Given data :                  Mass of the ball, m = 5 kg                  Initial speed of the ball…

Q: 13. A roller coaster at the Six Flags 2C Great America amusement park in Gurnee, Illinois,…

A: since the question contains more than 3 subparts, the solution for the first three is provided here.…

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A: Weight of hanging object=30 Newton Weight of resting object=10 Newton Since the resting object on…

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Q: A 0.15 kg marble is on a track. It is being held at the top of a hill that is 10 m high. If it is…

A: According to the conservation of energy, energy of an isolated system is conserved. i.e. energy can…

Q: An airplane accelerates from rest to a speed of 125 m/s while traveling a distance of 500 m What is…

A: We know that:_ V2 = U2 + 2aS Where, V = final speed ; U = initial speed a = acceleration  and S =…

Q: Which of the following situations would result in a greatest impact force: a. the crash is head-on…

A: It depends what you mean by impact force if you mean kenetic energy the two 30 mph car collision is…

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A: Given: The initial speed of the car is 55 km/h. The stopping distance is 26 m. The final speed of…

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Q: You are participating in a three-way pulling game. Red lines show competitors force vectors. 560 N…

A: Given F1 = 560 N,  53° above the horizontal from +x axis F2 = 400 N, 45° below the horizontal from…

Q: What distance will someone slide given a velocity, a μk, and an acceleration

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Q: Q26. In which one of the following cases is work scientifically said to be done? O Mira studies for…

A: We know that the work done is given by W=FdCosΘ where Θ is the angle between the force vector &…

Q: A car is driven at constant speed over a circular hill with the radius R-50m. The mass of the car is…

A: The given data are: R=50 mm=90 kgv=20 m/s Here, R denotes the radius, m denotes the mass, and v…

Q: 6. A car is initially at rest waiting for traffic lights to change. Once the green light comes on is…

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A: The objective of the question is to find out the minimum acceleration the criminal can have as he…

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Q: 20 If you drop a rock from a great height, about how fast will it be falling after 5 seconds,…

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Q: The trap-jaw ant, found throughout tropical South America, catches its prey by very rapidly closing…

A: (a).The slope of the Speed-Time graph gives accelaration. In this case ,Maximum Accelaration means…

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A:

Q: An airplane starts from 17.8 m/s and accelerates at 11 m/s2. What is its speed at the end of a 340 m…

A: Given data: Initial velocity, u=17.8 m/s Acceleration, a=11m/s2 Distance, s=340 m We have to find…

Q: Com. 3. Mr. Lucus sees Bo in the hall 8m away from him walking away. Bo stops to talk to another…

A: Please see the answer below.

Q: C1. You observed a stone falling freely from a cliff. The time it took to fall is 4 s. How high is…

A: When a stone is freely falling from a cliff, the initial velocity of the stone is equal to zero. u=0…

Q: 5. A certain force is given by F = r?f +2r?0. Is this force conser- vative? Show all steps.

A: For conservative force The curl of the force should be zero. Thus

Q: 2. In gym class Hannah pushes Collin on his rollerblades. If Collin has a mass of 70kg and has an…

A: Given : Mass (m) = 70 kg  Acceleration (a) = 2.5 m/s2