A gymnast spring vertical upward from a trampoline as in figure. The gymnast leaves the trampoline at height of 1.20m and reaches a maximum height of 4.80m before falling back down. all heights are all measured with respect to the ground. Ignoring air resistance, determine the initial speed “vo” with witch the gymnast leaves the trampoline.

The initial velocity of the gymnast is 8.5 m/s.

Explanation:

We can use the kinematic equation

to figure out the initial velocity of the gymnast.

Now, when the gymnast reaches the maximum height,  the distance he has traveled is , and his velocity is zero; therefore .

Thus, we have

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles