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Q1. A loudspeaker of mass 21.0 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
What is the tension T in each of cables?
Use 9.80 {rm m/s} ^ 2 for the magnitude of the acceleration by reason of gravity.
Q2. A golf ball with an initial angle of 34? lands exactly 240m down the range on a level course. The acceleration of gravity is 9.8 m/s2.
a) Neglecting air friction, what initial speed would achieve this result?
b) Using speed determined in item (a), find the maximum height reached by the ball.
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
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Two bicycle tires are set rolling with the equivalent initial speed of 5.0 m/s along a long, straight road, and distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {rm psi} and goes the dist..
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