EBK PHYSICS FUNDAMENTALS
2nd Edition
ISBN: 9780100265493
Author: Coletta
Publisher: YUZU
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Chapter 5, Problem 21P
To determine
To Calculate:The tension in the string.
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On a planet in another solar system, a pail of sand with a mass of 8.50 kg is swung in a vertical circlewith a radius of 0.830 m. If the speed of the pail at the top of the circle is 4.52 m/s, and for that instant, thetension in the rope is zero, then What is the acceleration due to gravity on that planet?
A 0.55-kg ball, attached to the end of a horizontal cord, is revolved in a circle of radius 1.3 m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 75 N, what is the maximum speed the ball can have?
A bucket of mass 2.00 kg is whirled in a vertical circle of diameter 1.20m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket.
Chapter 5 Solutions
EBK PHYSICS FUNDAMENTALS
Ch. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Prob. 4QCh. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8QCh. 5 - Prob. 9QCh. 5 - Prob. 10Q
Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 13QCh. 5 - Prob. 14QCh. 5 - Prob. 15QCh. 5 - Prob. 16QCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8PCh. 5 - Prob. 9PCh. 5 - Prob. 10PCh. 5 - Prob. 11PCh. 5 - Prob. 12PCh. 5 - Prob. 13PCh. 5 - Prob. 14PCh. 5 - Prob. 15PCh. 5 - Prob. 16PCh. 5 - Prob. 17PCh. 5 - Prob. 18PCh. 5 - Prob. 19PCh. 5 - Prob. 20PCh. 5 - Prob. 21PCh. 5 - Prob. 22PCh. 5 - Prob. 23PCh. 5 - Prob. 24PCh. 5 - Prob. 25PCh. 5 - Prob. 26PCh. 5 - Prob. 27PCh. 5 - Prob. 28PCh. 5 - Prob. 29PCh. 5 - Prob. 30PCh. 5 - Prob. 31PCh. 5 - Prob. 32PCh. 5 - Prob. 33PCh. 5 - Prob. 34PCh. 5 - Prob. 35PCh. 5 - Prob. 36PCh. 5 - Prob. 37PCh. 5 - Prob. 38PCh. 5 - Prob. 39PCh. 5 - Prob. 40PCh. 5 - Prob. 41PCh. 5 - Prob. 42PCh. 5 - Prob. 43PCh. 5 - Prob. 44PCh. 5 - Prob. 45PCh. 5 - Prob. 46PCh. 5 - Prob. 47PCh. 5 - Prob. 48PCh. 5 - Prob. 49PCh. 5 - Prob. 50PCh. 5 - Prob. 51PCh. 5 - Prob. 52PCh. 5 - Prob. 53PCh. 5 - Prob. 54PCh. 5 - Prob. 55P
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- If the sling used a 1.50m string to whirl a 0.0350kg pebble to a horizontal circle, what is the tension on the cord if the pebble makes one revolution in 1.20s?arrow_forwardWhen a car moves in a circular path on level ground, what force is maintaining the circular motion?arrow_forwardThe direction of frictional force is a. against the weight b. towards the gravity C. in favor of the normal force d. against the motion e. horizontal to the weight f. perpendicular to the acceleration g. towards the groundarrow_forward
- A 1000 kg car enters an unbanked curve of 1 km radius with a velocity of 80 kph. What is the minimum coefficient of friction between the road and the car that will allow the car to travel through the turn without banking? Correct answer is 0.05arrow_forwardAn engineer must design a curved exit ramp for a highway in such a way that a car, exiting at the posted speed limit of 40 mi/hr, does not depend on friction to round the curve without skidding. The radius of the curve is 161 m. At what angle with respect to the horizontal must the curve be banked?arrow_forwardAs seen in the figure, two objects are connected by a light string that passes over a pulley. Assuming the pulley and incline are frictionless, find the tension in the string. m1 =4 kg , m2 = 10 kg and θ = 480.arrow_forward
- A mass of 0.50 kg hangs from the end of a rope that rotates in vertical circles of radius 2.0 m. When the string is horizontal, the speed of the mass is 8.0 m / s. What is the tension of the string in this position?arrow_forwardIf Jeno's wooden ball has mass 0.25 kg and tied to a rope executes uniform circular motion with a speed of 2 m/s of radius 3.5 m, what is the magnitude of force acting on his wooden ball?arrow_forwardA motorist travels along a vertical circle with a diameter of 10.0 m. After one successful revolution, he notices that his speed at the bottom of the pathway is 6.50 m/s. The mass of the motorists is 70.0 kg. What apparent weight would he feel?arrow_forward
- Why is the acceleration of a body moving uniformly in a circle, directed towards the centre?arrow_forwardA space station, in the form of a wheel 120 m in diameter, rotates to provide an artificial gravity of 3.00 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the wheels rotation in revolutions per minute that will produce this effect.arrow_forwardA car having a gross weight of 50 kN is moving at a certain design speed along a highway curve. Neglecting friction between the tires and the pavement, find the force that will tend to pull the car away from the center of the curve if the curve has an impact factor (centrifugal ratio) of 0.30.arrow_forward
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