Q1 a forceof 50 n moves a 60 kg object along a rough floor, Ask an Expert

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Q1. A forceof 5.0 N moves a 6.0 kg object along a rough floor at a constant speed of 2.5 m/s.

(a) How much work is done in 25 s?

(b) What power is being used?

Q2. A 3.0kg metal ball, at rest, is hit by a 1.0 kg metal ball moving at 4.0 m/s. The 3.0 kg ball moves forward at 2.0 m/s and the 1.0 kg ball bounces back at 2.0 m/s.

a. what is the total kE before collision

b. what is the total KE after collision

c. how much energy is transferred fromt the small ball to the large ball?

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Category:- Physics
Reference No.:- M91012525

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