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Physics 6A Ch3Worksheet

# Physics 6A Ch3Worksheet - CLAS Physics 6a Ch3 In Class...

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CLAS Physics 6a Ch3 – In Class Worksheet Zero Launch Angle 1) A person skateboarding with a constant speed of 1.30m/s releases a ball from a height of 1.25m above the ground. Given that that x 0 = 0 and y 0 =1.25m, find x and y for (a) t=0.250s and (b) t= 0.55s. c) Find the velocity, speed and direction of motion of the ball at t=0.500s. 2) Two youngsters dive off an overhang into a lake. Diver 1 drops straight down, diver 2 runs off the cliff with an initial horizontal speed v 0 . Is the splashdown speed of diver 2 (a) greater than, b) less than or c) equal to the splashdown speed of diver 1? 3) A mountain climber encounters a crevasse in an ice field. The opposite side of the crevasse is 2.75 m lower, and is separated horizontally by a distance of 4.10m. To cross the crevasse, the climber gets a running start and jumps in the horizontal direction. a) What is the minimum speed needed by the climber to safely cross the crevasse? If the climber’s speed is 6.00m/s, b) where does the climber land, and c) what is the climber’s speed on landing?

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