Find the whole amount in each case 9% is 45 cm
2 answers:
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From the equation of motion, we know,
Where s= displacement
u= initial velocity
a= gravitational force
t= time
Displacement is 0 since the ball comes back to the same point from where it was thrown.
A = since the ball is thrown upwards.
Plug the known values into the equation.
=>
Solving for u gives :
u= 16.67 m/ sec ....... equation (1)
At maximum height, final velocity i.e v is 0
Time take to reach the top =
=>
Solving for s we get
s= 14.16 m
Answer:
196
Step-by-step explanation:
Surface are of 2 rectangles = 2(2*4) = 16
surface are of the base rectangle = 4*3 = 12
Area of tow triangles =2( * 2* 2)= 4
total = 16+12+4
= 196