3 A baseball is thrown straight upward with a speed of 30 m/s. (a) How long will it rise? (b) How high will
it rise? (c) How long after it leaves the hand will it return to the starting point? (d) When will its speed be
16 m/s? Ans. (a) 3.1 s; (b) 46 m; (c) 6.1's; (d) 1.4 s and 4.7 s​

Answers

Step-by-step explanation:

a) Time to max. height = (v/g) = 30/9.8 = 3.06 secs.

b)  Height attained = (v^2/2g) = 30^2/19.6 = 45.92 metres.

c) (3.06 x 2) = 6.12 secs.

d) Time to 16m/sec = (v/g) = 16/9.8 = 1.633 secs. Add 3.06 secs. if you need it to be time from release and then dropping to 16m/sec.

differnt varibles efect the range

step-by-step explanation:

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people