A 100 kg boulder falls off the side of a cliff on Mars where the acceleration due to gravity is 3.8 m/s^2 (squared). It falls for 2 s. The equation for the distance it falls is d=1/2at^2 (squared). What is the power of the boulder after 2 s?

Q: As part of a charity fund raising drive, a runner with mass 50.0 kg runs up the stairs to the top of…

A: Mass of the runner=50kgHeight=443macceleartion due gravity=g=9.8m/s2Increase in potential…

Q: A 67 kg yak has an average power output of 200 W. How long can a yak climb a 3km high mountain?…

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Q: A force F = 3i + 7j + 7k acts on a 2 kg mobile object that moves from an initial position of D1 = 3i…

A: We know average power P=Wt, where W=work and t=time And Work W=F.→d→ where, d→=df-di Given data:…

Q: A car of mass 1,000 kg moves with a speed of 5.00 m/s. If the car triples its speed to 15.0 m/s then…

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Q: Which has more kinetic energy: a 0.0012 kg bullet traveling at 405 m/s or a 5.3 x 10^7 kg ocean…

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Q: The object in the figure below undergoes a displacement of 2.00 m. The work done by the F=10.0 N…

A: Given that F = 10 N Displacement ∆x→ = 2 m x^ Angle with X-axis θ = 60°

Q: A weighlifter lifts a 50-kg barbell a vertical height of 2.0 m in 5.0 s. What is the average power…

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Q: A single force acts on a 3.2 kg particle-like object in such a way that the position of the object…

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Q: 10. What is the velocity of a 5000 kg truck which can complete a work of 360 kJ? Group of answer…

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Q: How much work is needed to change the speed of a 2375 kg sport utility vehicle from 15.0 m/s to 60…

A: Given data:  Mass (m) = 2375 kg Initial velocity (Vi ) = 15.0 m/s Final velocity (Vf) = 60 m/s…

Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? O 2 500 J O 1755 J O 3…

A: Write the expression for the work done to raise a barbell. Here, m represents the mass, g…

Q: In a bowling alley, the distance from the foul line to the head pin is 59 ft, 10 13/16 in. (18.26…

A: The speed is, v=dtv=18.26 m2.0 sv=9.13 m/s

Q: S. A 10kg object is raised to a height of 20m. What is the magnitude of its potential energy?…

A: Given data,      Height  =  h       Mass  =   m      Acceleration due to gravity  =  g…

Q: A center hurls a basketball m = 1 kg straight up with an initial speed of v0 = 7.5 m/s. He releases…

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Q: In scaling a vertical wall, spiderman needs 3.1 kW of power to maintain a speed of 4.5 m/s. If…

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Q: Estimate the work (in J) you do to mow a lawn 20 m by 20 m with a 60-cm-wide mower. Assume you push…

A: in this question  we use simple work equation.

Q: An accelerating object of mass m=18 kg is fired with an initial speed v=9 m/s at a starting point.…

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Q: A horse is pulling a sled at a velocity of 3.5 m/s. If the horse's power output is 250 W, what is…

A: Given data:  Velocity (v) = 3.5 m/s Power (P) = 250 W Required: Force (F)

Q: When a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during…

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Q: It takes 157 kJ of work to accelerate a car from 23.4 m/s to 27.3 m/s. What is the car's mass?

A: Given, Work done, W=157 kJ Initial velocity, u=23.4 m/s Final velocity, v=27.3 m/s

Q: A 56.5-kg person is running and accelerates from 3.67 m/s to 8.29 m/s in 5.67 s. How much power does…

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Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? From the problem, what is…

A: Given data:  Mass (m) = 200 kg Height (h) = 1.25 m Required: Force (F)

Q: Janine is riding a bicycle. Over a period of 8.90 second, she increases her speed from 0 m/s to 7.57…

A: Given data:  Time (t) = 8.90 s Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 7.57 m/s Mass (m)…

Q: A cart of mass 8.00 kg was moved by applying two constant forces. Force 1 is 28.0 N at 42.0°, and…

A: The position of the cart is:                          The equation for the angle of the position…

Q: A block of mass 2.0 kg is moving to the right and changes its speed from 3.0 m/s to 1.0 m/s. Match…

A: Given data:  Mass (m) = 2.0 kg Initial velocity (Vi) = 3.0 m/s Final velocity (Vf) = 1.0 m/s…

Q: What is the potential energy in J of a bungee jumper standing on a 0.109 km bridge that weighs 85…

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Q: A duck is flying across a river at a speed of 2.0ms. It has a mass of 3.0kg. What is the kinetic…

A: Given: The mass of the duck is 3 kg. The speed of the duck is 2 m/s.

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

Q: An object with a mass of 500 g is released from a helight of 40 m. Since the air friction is…

A: (3) Write the mass of the object. m=500 kg   Write the initial height of the object. h=40 m

Q: A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power…

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Q: A 5.00-kg object has a velocity (7.00i – 2.00j) m/s. (a) What is its kinetic energy at this moment?…

A: Part aWhat is its kinetic energy at this moment? part(b) What is the net work done on the object if…

Q: Harriet is practicing archery. As she draws back an arrow, the arrow has 34.3 J of elastic potnetial…

A: Write a given values of this question. Elastic potential energy. PEelastic=34.3J Gravitational…

Q: A box of mass m = 2 kg is kicked on a rough horizontal plane with an initial velocity v_0. If the…

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Q: An airplane of mass 4500 kg is cruising at a speed of 49.0 m/s at an altitude of 175 m. What is its…

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Q: An apple falls from a tree and drops straight to the ground. Its initial height was 2.3 m , and its…

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Q: A particle, mass 8 kg, moves along the y axis with a speed of 3.3 m/s. It experiences a force of 16…

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Q: 19. If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at…

A: average weight of a passenger= 660 N Total weight lifted= 100×660= 66000 N Height H= 150 m time…

Q: A particle of mass 0.4 kg moves a long a straight line according to x(t) = 2t + t3, where t is in…

A: Power is defined as time derivative of the work done on a system, or work done per unit time. Work…

Q: ubmit Answer Tries 0/5 d the work done by the weight of the block. ubmit Answer Tries 0/5 d the…

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Q: F = 5000 N 0= 36.9° fk = 3 500 N d =20m Weight = 14 700 N

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Q: A 4.4 kg box slides on a horizontal frictionless table and collides with a 1.1 kg box initially at…

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Q: Consider a compact car that is being driven at 88 km/h. The acceleration of gravity is 9.8 m/s. From…

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Q: as a 2kg object moves from (2i+5j)m to (6i-2j)m, the constant resultant force acting on it is equal…

A: Given that the mass of object is m=2.0kgThe object moves from S1=2i+5j to S2=6i-2jThe force on the…

Q: Two cars are moving. The first car has twice the mass of the second car, but only half as much…

A: Given, Mass of car A (mA)= 2m Mass of car B(mB)= m Kinetic energy of car A (KA)= K Kinetic energy of…

Q: How long does it take for a forklift with a useful power output of 980 watts, to raise a 100-kg…

A: Given data: Power (P) = 980 watts Mass (m) = 100 kg Height (h) = 2.0 m Required:  Time (t)

Q: An accelerating object of mass m=14 kg is fired with an initial speed v-2 m/s at a starting point.…

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Q: What is the average power output of a 55.0 kg woman who does 50 deep knee bends in which her center…

A: The expression for the output power is,

Q: A machine carries a 4.5 kg package from an initial position of d, - (0.50 m)î + (0.75 m)î + (0.20…

A: The work done by a force to move a body by a certain distance is given by W = F.s, where F = the…