Rachael shoots a rocket straight upward with an initial velocity of 4 meters per second from a height of 180 meters. The distance d (in meters) of the ball from the ground after t seconds is given by the equation d = 180 + 4t - 0.5g(t²), where gravity g is 9.8 m/s². After approximately how many seconds does the rocket strike the ground?(A) 5 seconds(B) 6.5 seconds(C) 8.5 seconds(D) 9 seconds(E) 10 seconds

h=−4.9t 2 +25tThe equation above expresses the approximate height ℎ, in meters, of a ball 𝑡𝑡 seconds after it is launched vertically upward from the ground with an initial velocity of 25 meters per second. After approximately how many seconds will the ball hit the ground?A3.5B4.0C4.5D5.0

(a)The function 𝑓(𝑡)=−5𝑡2+20𝑡+60f\left(t\right)=-5t^2+20t+60f(t)=−5t 2 +20t+60 models the approximate height of an object 𝑡tt seconds after it is launched. How many seconds does it take the object to hit the ground? (Enter only the number)

A ball is thrown vertically upward with a velocity of 49 m/s. calculate:(a) The maximum height to which it rises.(b) The total time it takes to return to the surface of the earth. (Take g=9.8m/s2)

18. A cannon shell is fired straight up from the ground at an initial speed of 225 𝘮/𝘴. After how much time is the shell at a height of 6.20 3 102 𝘮 above the ground and moving downward?

A rocket is launched in the air. Its height in feet is given by h, of, t, equals, minus, 16, t, squared, plus, 8, th(t)=−16t 2 +8t where tt represents the time in seconds after launch. How many seconds have gone by when the rocket is at its highest point?