How much space will the tissue box take up on my desk if the base dimensions are 3.5 inches
and 8 inches?
square inches
Hint: Find the area of the base of the tissue box.

3.5 x 8 = 28 in²

23.24 seconds.

The travel time from the start of the trip to the end will have three phases. Initial acceleration, cruising, and deceleration. So, let's see how long each phase takes. For the initial acceleration phase, assume it accelerates at 4.50m/s2 until it reaches 19.8 m/s. So calculate t. t = 19.8 m/s / 4.5 m/s2 = 19.8/4.5 s = 4.4 s

The distance traveled during the acceleration phase will be 1/2AT^2. So d = 0.5 * 4.5 * t^2 = 2.25 * 4.4^2 = 2.25 * 19.36 = 43.56 m

The deceleration phase will also take 4.4 seconds and occur over a distance of 43.56 m. So the combined distance for acceleration and deceleration is 43.56 * 2 = 87.12 meters. Now the total distance that we want to travel is 373 m. So you can determine the distance for the cruising phase by subtracting the combined distances for acceleration and deceleration. Giving cruise = 373 - 87.12 = 285.88 m

The time the cruising phase takes is the distance divided by the speed, so we get t = 285.88 m / 19.8 m/s = 14.44 seconds.

Finally, the total travel time is the time for acceleration plus time for cruising plus time for deceleration, giving 4.4 s + 14.44 s + 4.4 s = 23.24 seconds.