1.) you and your friend are on your bycicles and accelerate from from rest. If your average acceleration is double that of your friend, how will your change in speed compare with your friend's after the same time interval?
2.) In a road test, car A accelerates from rest (0 km/h) to 100.0 km/h in 16.0 s and car B takes 8.0s in the same test. Which car has the greater average acceleration? By how many times?
3.) A roller coaster car accelerates at 8.0 m/s (squared) for 4.0s. What is the change in the speed of the roller coaster car?
4.) The human heart pumps about 60 mL of blood into the auorta during a single stroke, which lasts about 0.1 s. In a single stroke, a pulse of blood is accelerated from the rest to about 50 cm/s. Calculate the average acceleration of the blood in metres per second squared.
Thank you!
Grade 10 Science questions: HELP! PLEASE! REALLY IMPORTANT!?
Number 2 is car B.
It accelerates twice as fast.
And I'm just too lazy to try the rest of em'. Sorry. ^-^;;
