Question
A boy tosses a coin upward with a velocity of 20m/s
What will be the maximum height?
Time of flight?
Velocity as it returns to the hand?
Velocity as it hits the ground?
What will be the maximum height?
Time of flight?
Velocity as it returns to the hand?
Velocity as it hits the ground?
Answers
Damon
v = Vi + a t
so at top
0 = 20 - 9.81 t
solve for t at top
T = time in air = 2 t
h = h of hand + 20 t - 4.9t^2
solve for h
v at hand = -20 by symmetry
I do not know how high his hand was so can say nothing about ground
so at top
0 = 20 - 9.81 t
solve for t at top
T = time in air = 2 t
h = h of hand + 20 t - 4.9t^2
solve for h
v at hand = -20 by symmetry
I do not know how high his hand was so can say nothing about ground