please help me do number 2,3 and 4 am having a hard time Free-fall Practice ProblemsName1) A stone is dropped from the top of a cliff. It is seen to hit the ground below after 3.50 s.How high is the cliff? [60.0 m]2) Calculate how long it took King Kong to fall straight down from the top of the Empire StateBuilding (380 m high). What was his velocity just before "landing"? [8.81 s; 86.3 m/s]3) A car rolls gently (vo = 0) off a vertical cliff. How long does it take to reach a speed of90 km/hr? [2.6 s]4) A foul ball is hit straight up into the air with a speed of 25 m/s. (a) How high does it go?[31.9 m] (b) How long is it in the air, that is, how long does it take to go up and come backdown again? [5.1 s]5) A ball is thrown vertically downward with a velocity of 15 m/s from the roof of a buildingthat is 22 m high. How long does it take to hit the ground below? How fast was it goingwhen in hit? [1.08 s; 25.6 m/s]6) A ball is thrown vertically upward with a velocity of 15 m/s from the roof of a building thatis 22 m high. How long does it take to hit the ground below? How fast was it going when inhit? [4.14 s; 25.6 m/s]ype here to search

Given data: Initial velocity (v0 ) = 0 m/s Height of the building (h) = 380 m

Answered: Calculate how long it took King Kong to…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter3: Accelerated Motion

Section3.1: Acceleration

Problem 15SSC

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Calculate how long it took King Kong to fall straight down from the top of the Empire State Building (380 m high). What was his velocity just before "landing"? [8.81 s; 86.3 m/s]