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A car travels along a circular flat road that has a radius of 0.700 km. If the speed is uniformly increased at a rate of 3000 km/h^2, determine the magnitude of the acceleration at the instant the speed of the car is 70 km/h. I know the answer is 7.6×10^3 km/h^2 but I can't figure out how to...

A diver jumps from a 10 m high diving board at an angle of 30 degrees above horizontal. Two seconds later the diver reaches water. What is the initial speed of the diver ? I know the answer is 9.6m/s, but I can't figure out how to solve for it! If anyone could help I'd appreciate it!

A diver jumps from a 10 m high diving board at an angle of 30 degrees above horizontal. Two seconds later the diver reaches water. What is the initial speed of the diver ? I know the answer is 9.6m/s, but I can't figure out how to solve for it! If anyone could help I'd appreciate it!

A diver jumps from a 10 m high diving board at an angle of 30 degrees above horizontal. Two seconds later the diver reaches water. What is the initial speed of the diver ? I know the answer is 9.6m/s, but I can't figure out how to solve for it! If anyone could help I'd appreciate it!