1. You throw a book straight up from a height of 2 meters above the ground with
ID: 2114415 • Letter: 1
Question
1. You throw a book straight up from a height of 2 meters above the ground with speed of 15m/s
a. Draw a diagram of the situation (ignore this one)
b. Where is the book after 2 seconds?
c. What is the maximum height above the ground that the book reaches?
2. You are standing on a platform and you throw a 5-kg ball horizontally with a speed of 10m/s. You release the ball at a heignt of 5 meters aboce ground.
a. Find the time it take the ball to hit the ground.
c. Find the horizontal distance the ball travels before it hits the ground.
Explanation / Answer
h =5
u =15
v=0
b)
s= ut +0.5 at^2
= 15*2 -0.5*9.8*4
= 30-19.6
=10.4
c)
max ht
h+5 = ut +0.5at^2
h = 15*(15/9.81) - (0.5*9.8*(15/9.81)^2)-5
=6.47957990816
2)
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