HELP! HELP PLEASE

A 3.5 kg toy dump truck moving with a speed of 2.5 m/s starts up a ramp. How high (h) does the truck roll
before it stops?

Identify the amplitude on the diagram and give the correct description. question 3 options: a because amplitude is the distance from wave crest to wave crest. b because the wavelength shows amplitude. c because amplitude is the distance between a crest (or trough) and rest. d because wavelength show amplitude. (brainiest if you get it right! ) ~kayla

Amass has an acceleration of 10- 2t. what is its velocity and displacement if it started at x- 4m and the initial velocity was 8m/s? at what time does it have 0 velocity? graph all graphs.

Iwill give brainliest if you answer right : )