projectile is fired at an upward angle of 48.0° from the top of a 135m-high cliff with a speed of 165 m/s. What will be its speed when it strikes the ground below? (Use conservation of energy methods only, remembering that energy is a scalar quantity. Assume there is no air resistance.

Q: Using energy considerations, calculate the average force (in N) a 65.0 kg sprinter exerts backward…

A:

Q: (a) How long (in s) would it take a 1.50 x 10 kg airplane with engines that produce of 100 MW of…

A: a) Power is defined as rate of doing work  which is given as- P=WtW=workt=timeThe work done by…

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A: We will use the conservation of energy

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A: Given data :  Mass of the person , m = 60 kg  Distance, S = 15 meter  Falls at constant speed  To…

Q: Asoccer player strikes a 428gramball with an initial velocity of 27.4m/s. The ball strikes the…

A: Given data:  Mass of ball (m) = 428 g = 0.428 kg Initial velocity (Vi) = 27.4 m/s Final velocity…

Q: Using energy considerations, calculate the average force (in N) a 68.0 kg sprinter exerts backward…

A: From work-energy theorem: Substitute the known values and solve for the force.

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A:

Q: A partice is acted on by a conservative forceF-(-AB where A and are contants, and in meters. (For…

A: U(x) =Ax2/2 - Bx7/7   b) U(2.5) = A (2.5)2/2 - B(2.5)7/7             = 3.125 A - 87.19 B   J U(3.7)…

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A:

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A: The work done by a variable force F moving an object along a line from y=a to y=b in the direction…

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A: The mass of the girl and the skateboard, m=85 kg   The height of the hill, h=25.0 m

Q: A block with m = 1kg moves up an incline (0-30°) with an initial speed of 10 m/s. Vo (a) If there is…

A: Given data: Mass of block is, m=1 kg . Angle of inclination is, θ=30∘. Initial speed of bock is,…

Q: A 1700 kg car starts up a 130 m long hill at a speed of 20.0 m/s. If the propulsive force (up the…

A: Work done by gravity  Wg = -mgh = -1700×9.81×48.1 = -802163.7 J Work done by propulsive force  WP =…

Q: What minimum speed does a 100 gg puck need to make it to the top of a 5.20 mm -long, 27.0 ∘∘…

A: Mass, m = 100 g Length of ramp, l = 5.20 m Angle, θ = 27°

Q: A 69.0 kg diver is 3.30 m above the water, falling at speed of 4.60 m/s. Calculate her kinetic…

A: Given  Mass of diver m= 69kg Initial Height of diver hi = 3.30m Initial speed of diver Vi = 4.60m/s…

Q: Calculate the power output of a 15 mg fly as it walks straight up a windowpane at 2.0 cm/s.

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Q: Using energy considerations (and not kinematics), find the speed a drag-free object would have to be…

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Q: A 2.50 kg mass is dropped from rest. If it falls a distance of 25.o m what will its change in…

A: Given  Mass m = 2.5 kg decrease in elevation of mass h = 25 m change in KE ?

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Q: A toy rocket with a mass of 328 grams is launched into the air using a spring.  At the apex of the…

A: kinetic energy is given as  K= 1/2 M V^2 here M is the mass and V is the speed of body

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Q: metres and the velocity is 10.3 m/s. What is the kinetic energy (in J) of the rocket at this…

A: The answer is below

Q: A 61.8-kg skateboarder starts out with a speed of 1.75 m/s. He does 80.4 J of work on himself by…

A: According to this theorem, the total work done on an object is equal to the change in its energy.…

Q: Using energy considerations, calculate the average force (in N) a 69.0 kg sprinter exerts backward…

A: Given Data : The mass of the sprinter is given as m = 69 Kg. The initial velocity of the sprinter is…

Q: that

A: Given, Mass(M)=13 kg. Displacement=65 cm=65/100 m=0.65 m. g=9.8 m/s²