### What is the car''s speed at the bottom of the dip

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Q1. The weight of passengers on the roller coaster increases by 47 percent as the car goes through a dip with a radius of curvature of 33 m. What is the car's speed at the bottom of the dip; assume that the local acceleration because of gravity is -9.80 m/s2?

Q2. How much power must you exert to horizontally drag a 20.0 kg table 14.0 m across a brick floor in 40.0 s at constant velocity, assuming the coefficient of kinetic friction between table and floor is 0.550?

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