Question

4. What is the buoyant force acting on a plastic toy having a mass of 13 kg and a volume of 0.011 m when it is submerged in water having a density of 1000 kg/m? 5. Nelly is driving her 1400 kg car at 35 m/s on a level road when she encounters a patch of ice. The 2200 kg truck in front of her is driving in the same direction, but at 18 m/s. After the collision, the truck is moving at 25 m/s in the same direction. (A) How fast is Olivie's car now moving? (B) What is the magnitude of the impulse given to the truck? Nelly 6. A loaded washing machine is spinning at at 38 rad/s near the end of the rinse cycle. The tub slows due to a frictional torque at -0.17 rad/s?. (A) How long does it take to stop? (B) How many revolutions does it make in the process of stopping?

Answer 1

4Sol:m3 kg. Vohme ) o.01l m3 1000 kg/m3 . we have Booyantferce mg (Pbet where tm/v, So Pa 107. SN AluCKV 1000x9.8x0-01 FE