A boat is being towed at the rate of 12 mi/hr. At the instant that the towing line is cast off, a man in the boat begins to row in the direction of the motion, exerting a force of 20 lbs. If the combined weight of the man and the boat is 480 lbs and the resistance is equal to 1.75v lbs, where v is measured to ft/s, find the speed of the boat after half a minute.

Q: You throw a ball straight up. The ball leaves your hand at a height of 2.00 m above the ground with…

A: When an object is thrown upward then the gravitational acceleration acts in the downward direction…

Q: A small child is climbing up a slide angled at 18.0° above the horizontal. They only make it 0.700 m…

A: Inclination angle Distance traveled

Q: An E. coli bacterium can be modeled as a 0.50-μm-diameter sphere that has the density of water.…

A: The diameter of the bacterium is 0.5 μm The radius of this bacterium is thus, r=0.52=0.25…

Q: If a 3.9 kg object is placed on a frictionless incline of 55.6 ° and released from rest, what is…

A:

Q: A ball is thrown downward from the top of a 30.0 m tower with an initial speed of 15.0 m/s. Assuming…

A: Given Data:Initial speed of the rock Height of the rock To Determine:The speed of the ball just…

Q: A small block is released from rest at the top of a frictionless incline. The block travels a…

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

Q: A water balloon is thrown straight down with an initial speed of 12.0 m/s from a second floor…

A: Given data:  Initial velocity (u) = 12.0 m/s, downward  Height (h) = 5.00 m Air resistance is…

Q: A skydiver jumps from an airplane where the resistance he encountered is proportional to its…

A: Altitude of the skydiver at the moment he opens his parachute. Given, First limiting velocityv1=10…

Q: Two protons are aimed directly toward each other by a cyclotron accelerator with speeds of 2.70×105…

A:

Q: The known elevations of the ski jumping hill shown below are as follows: hg = 2.4 m hc = 6.1 m If a…

A: The elevation of the ski jumping hill at position A is denoted by hA. The elevation of the ski…

Q: A quarterback throws a ball with an initial speed of 7.35 m/s at an angle of 63.0° above the…

A:

Q: The known elevations of the ski jumping hill shown below are as follows: hB = 1.5 m hC = 7.5 m If…

A:

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Given Height from book dropped = h = 3.48 m Initial velocity = u = 0 m/s We have to calculate the…

Q: Same situation as in the previous problem this time the magnet has mass 3.14 kg, the force pulling…

A:

Q: ball thrown horizontally from a point 24 m above the ground, strikes the ground after traveling…

A: Given data: Height above the ground is, h=24 m. Horizontal distance covered by ball is, s=18 m.

Q: A force of 1.200×10^3 N pushes a man on a bicycle forward. Air resistance pushes against him with a…

A: Mass of bicyclist and bicycle m = 90 kg The force that pushes the bicycle forward F = 1.2×103 N =…

Q: A ski jumper starts from rest 47.5 m above the ground on a frictionless track and flies off the…

A: a) Velocity = 24.05 m/sb) maximum height above ground = 32.75 mc) She lands 59.02 m away from the…

Q: A baseball is hit with 200 lbs (889.7 Newtons) of force and given a horizontal velocity of 19 m/s.…

A: Let, the mass of the ball is 1 Kg. In the vertical direction, only force due to gravity is acting on…

Q: a ball which is dropped from the top of a building strikes the ground with a speed of 30m/s. assume…

A: Given data:  Initial velocity (u) = 0 m/s Final velocity (v) = 30 m/s Air resistance is negligible…

Q: Same situation as in the previous problem this time the magnet has mass 6.49 kg, the force pulling…

A:

Q: 46. Trying to escape his pursuers, a secret agent skis off a slope inclined at 30° below the…

A: Data provided in the question; Inclination of the slope (θ)=30o Height of slope above the land…

Q: A hollow steel ball weighing 4 pounds is suspended from a spring. This stretches the spring 1313…

A:

Q: 95. A mountain biker encounters a jump on a race course that sends him into the air at 60° to the…

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Q: Assuming air resistance is negligible, how many seconds does it take the pen to reach a speed of…

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Q: You ski straight down a 44.8° slope, starting from rest and traveling a distance of 10.7 m along the…

A: Write the given values with the suitable variables. θ=44.8°d=10.7 m Here, θ is the inclination of…

Q: A block with mass m = 14.9 kg slides down an inclined plane of slope angle 18.8o with a constant…

A: Consider the free-body diagram of the block when it slides down the incline with a constant velocity…

Q: a second sled is released from the top of this incline with an initial speed vi. Both sleds reach…

A: When an object of mass m is on this frictionless incline, the only force acting parallel to the…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.