Mastering Physics: Homework #10 (phy 111) Google Chrome https:// mastering physi
ID: 1354348 • Letter: M
Question
Mastering Physics: Homework #10 (phy 111) Google Chrome https:// mastering physics.com /myct/itemView? assignment ProblemID 51748559&offset; next Session PHY 11 Fall 2015 Homework 10 (phy 111 Problem 6.10 At that instant, find the magnitude of the acceleration of the bowling ball. Problem 6.10 A bowling ball weighing 71.2 N is attached to the ceiling by a 3.60 m rope. The ball is pulled to one side and released it then swings back and forth like a pendulum. As the rope 71.2 swings through its lowest point, the speed of the bowling ball mm/S is measured at 3.80 m/s Submit My Answers Give U Incorrect, Try Again, 9 attempts remaining Part B At that instant, find the direction of the acceleration of the bowling ball O Upward O Downward O n the direction of motion Submit My Answers Give Up Part C At that instant, find the tension in the rope Help Close Signed in Resources previous l 11 of 11 l return to assignmentExplanation / Answer
Here ,
a) at the bottom of the path
acceleration , a = v^2/r
a = 3.80^2/2.60
a = 5.55 m/s^2
the magnitude of acceleration is 5.55 m/s^2
b)
the accleration of the ball is upwards
c)
let the tension in the string is T
T - mg = ma
T = m *(g + a)
T = (71.2/9.8) *(9.8 + 5.55)
T = 111.5 N
the tension in the rope is 111.5 N