Hello, Seeking help to double check my answers on my most recent math lab.

You do not have to show your work, I am only looking to cross reference to check if my answers

are correct before continuing.

I apologize for the long question. I will rate.

Any response is appreciated, Thanks!

A rock thrown vertically upward from the surface of the moon at a velocity of 40 m/sec reaches a height of s = 40t - 0.81 meters in t sec. a. Find the rock's velocity and acceleration at time t. b. How long does it take the rock to reach its highest point? c. How high does the rock go? d. How long does it take the rock to reach half its maximum height? e. How long is the rock aloft? a. Find the rock's velocity at time t. v = m/s Find the rock's acceleration at time t. a = mis2 (Simplify your answer. Use integers or decimals for any numbers in the expression.) b. How long does it take the rock to reach its highest point? sec (Simplify your answer.) c. How high does the rock go? m (Simplify your answer.) d. How long does it take the rock to reach half its maximum height? sec Simplify your answer. Round to two decimal places as needed. Use a comma to separate answers as needed.) e. How long is the rock aloft? sec (Simplify your answer.)