week4quiz1

course Phy 231

A projectile leaves the edge of a table and, while traveling horizontally at a constant 22 cm/s, falls freely a distance of 104 cm to the floor. If its vertical acceleration is 980 cm/s2, how long does it take to fall and how far does it travel in the horizontal direction during the fall?Answer: First I’ll try to find the dt. y = .5(980cm/s/s)t^2, 104cm = 490cm/s/s * t^2, t = .46s. 22cm/s * .46s = 10.1cm. The projectile moved 10.1cm in the horizontal direction.

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