What is the speed of the block

Reference no: EM1311677

Q1. A 1.0-cm-diameter pipe widens to 2.0 {rm cm}, then narrows to 0.5 {rm cm}. Liquid flows through the first segment at a speed of 4.0 ;{rm m}/{rm s}.

Q2. A 240 block on a 58.0 -long string swings in the circle on a horizontal, frictionless table at 85.0.

What is the speed of the block?

Q3. Two friends, Al and Jo, have a combined mass of 138 kg. At an ice skating rink they stand close together on skates, at rest and facing each other, with the compressed spring between them. The spring is kept from pushing them apart, since they are holding each other. When they release their arms, Al moves off in one direction at a speed of 1.16m/s, while Jo moves off in the opposite direction at a speed of 0.973m/s. Assume that friction is negligible, find Al's mass.

Reference no: EM1311677

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