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Q. Besides the gravitational force, a 3.40-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (5.50 - 3.30) m, where the direction of is the upward vertical direction. Determine the other force.

Q. A 84 kg diver steps off a 15 m tower and drops from rest straight down into the water. If he comes to rest 4.2 m beneath the surface, determine the average resistance force exerted on him by the water?

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