A 22.4 kg ice skater is moving at 5.35 m/swhen she grabs the loose end of a rope, the opposite end of which is tied to a pole. She thenmoves in a circle of radius 0.567 m around thepole.Find the force exerted by the rope on herarms. The acceleration of gravity is 9.8 m/s2. Answer in units of kN.

Q: A 0.100 kg rock is attached to a 2.00 m long string and swung in a horizontal circle at a speed of…

A: Given:                    M= 0.100 kg                    l  = 2m                    v = 30 m/s…

Q: Suppose you fly a propeller-driven model air Plane on a 5.00m string in a horizontal circle. The…

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Q: A block and sphere are connected by a cord that passes over a pulley as shown. Neglect friction and…

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Q: A 1.2-kg mass is whirled around in a circle on a string of 12 meters. The speed of the mass is 5.4…

A:

Q: A 42.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a…

A: Given: Mass of the child = 42 kg Diameter = 22 m Angular velocity = 4 rev / min…

Q: Figure 2.1 shows a 65.0 kg person on a Ferris wheel of radius 12.0 m. The wheel makes one complete…

A: Given m=65 KgR=12 mω=2π8.5  rad/s=0.739 Rad/sec

Q: A physics nerd is whirling a stone around his head in a horizontal circle by means of a massless…

A:

Q: An exoplanet has three times the mass and half the radius of the Earth. Find the acceleration due to…

A: mass of exoplanet = 3 times the mass of earthradius of exoplanet = 12 times the radius of earth

Q: A sprinter of mass 69.3 kg runs at a constant speed of 11.0 m/s in a straight line. Find the extra…

A: To find the extra force the sprinter must exert on the ground to round a curve, we can use the…

Q: A 1175 kg car and a 2150 kg pickup truck approach a curve on the expressway that has a radius of 262…

A:

Q: The Earth has mass 5.98 × 1024 kg, the Moon has mass 7.35 × 1022 kg, and the distance between them…

A:

Q: A 2.386E+3-kg race car travels around a flat, circular track at a constant speed of 85.0 m/s. The…

A: Given that :Mass of the car  = 2.386 x 103 kgSpeed of the car = 85 m/sCircumference of the track =…

Q: Both parts please!!

A:

Q: A 3.5 kg ball is traveling in a circle of radius 1 m at a constant speed of 9 m/s. What is the…

A: The tension in the string must be equal to the centripetal force on the ball. It is given as,

Q: A 1290 kg car is pushing an out-of-gear 2200 kg truck that has a dead battery. When the driver steps…

A:

Q: A space traveller weighs herself on Earth at a location where the acceleration due to gravity is…

A: Given value --- part A-                      gravity g = 9.82 m/s2 .                   weight w =…

Q: A 5.23 kg ball is attached to the top of a vertical pole with a 2.33 m length of massless string.…

A: Mass of the ball, m = 5.23 kgLength of the string, L = 2.33 mSpeed of the ball, v = 4.95…

Q: puck of mass m=0.075 kgis moving in a circle on a horizontal frictionless surface. It is held in its…

A: Mass of puck  (m) = 0.075 kg Radius of path = length of string (R) = 0.42 m Time taken to complete…

Q: A 49.0-kg child takes a ride on a Ferris wheel that rotates four times each minute and has a…

A: Given Data: The mass of the child is, m = 49 kg. The diameter is, d =19 m. (a) Since the wheel…

Q: An athlete whirls a 6.41 kg hammer tied to the end of a 1.3 m chain in a simple horizontal circle…

A: Mass of the hammer 6.41 kg  Length of the chain 1.3m  The Angular velocity 1.64 rev/s

Q: The Earth pulls on the Moon, and the Moon pulls on the Earth. However, the Earth is pulled more and…

A: Given: Distance between Earth and moon =a Radius of Earth =r a= 64 r

Q: The mass of the Earth is about 81 times that of the Moon. If the radius of the Earth is four times…

A: Mass of Earth , ME = 81 x MM  Radius of Earth , RE = 4 x RM  To find = Acceleration due to gravity…

Q: An airplane flies at 120.0 m/s and banks at a 30°angle. If its mass is 2.50 × 10³ kg. (a) what is…

A: We have to find the magnitude of the lift force and radius of the turn.

Q: Jill in her car of mass 1800 kg is going over the top of a hill that has a radius of 99m. The car is…

A:

Q: A 0.104 kg rock is attached to a 2.02 m long string and swung in a horizontal circle at a speed of…

A: To find the tension in the string, we can analyze the forces acting on the rock when it is swung in…

Q: An astronaut lifts off in a rocket from the surface of the moon, where g = 1.6 m/s2. What vertical…

A: We know that, The gravity on earth is six times the gravity on the moon. So, If m is the mass of…

Q: A spaceship is midway between the earth and the moon when its engines fail. What is its…

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Q: A rock mass m=0.71 kgIs attached to a massless string of length l= 0.52 m. The rock is swung in a…

A: mass of rock (m) = 0.71 kgLength of string = radius of circular arc = 0.52 m speed (v) = 2.7 ms

Q: A 0.106 kg rock is attached to a 1.82 m long string and swung in a horizontal circle at a speed of…

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Q: A 5.43 kg ball is attached to the top of a vertical pole with a 2.47 m length of massless string.…

A:

Q: In the figure, block 1 has mass m, = 470 g, block 2 has mass m2 = 540 g, and the pulley is on a…

A: a) The kinematic equation is given by,  s = ut+1/2 at2     = 0+1/2at2   a = 2s/r2      =…

Q: A mass m2 kg undergoes circular motion of radius re39.4 cm on a horizontal frictionless table,…

A: Given: The radius of the circular path is 39.4 cm. The mass of the object is 2 kg. The time period…

Q: A 93-g block attached to one end of an 85-cm rope is twirled in a circular motion vertically at a…

A: Mass m = 93gram = 0.093 Kg length l = 85cm = .85m angular speed ω = 25 rad/s

Q: A 5.77 kg ball is attached to the top of a vertical pole with a 2.33 m length of massless string.…

A: Given data: Mass of ball, m = 5.77 kg Length of string, l = 2.33 m Speed of ball, v = 4.39 m/s g =…

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.