1. A loudspeaker of mass 18.0 kg is suspended a distance of h = 2.20 m...

1. A loudspeaker of mass 18.0 kg is suspended a distance of h = 2.20 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 4.00 m.

a) What is the weight of the speaker?

b) What is the tension TTT in each of the cables? (Use 9.81 m/s2m/s2 for the magnitude of the acceleration due to gravity).

2. A 11.1 kg runaway grocery cart runs into a spring with spring constant 275 N/m and compresses it by 65.1 cm.

a) What was the speed of the cart just before it hit the spring?

b) What is the total energy stored in the spring after the collision?

c) What is the maximum force exerted on the cart by the spring during the collision? (Give the magnitude of the force only)

Expert Solution

genius_generous answered 2 years ago

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