<span>C) An object accelerates in the same direction as that of the force applied.</span>
W=Fd. Force is not given so we solve for it. F=ma, m=5kg, a=2m/s^2, F=10N. Distance is not given so we solve for it, x=.5a(t^2)=.5(2)(7x7)=49m. F=10N, d=49m, W=490J.
The correct answer is C. Since that really was a tricky question I made sure it was correct by checking on Google. Hope I helped! - Amber
I did a project on Wood vs aluminum baseball bats to see which ball would travel farther when hit. I don't know If you play sports or anything but it was very fun for me considering I enjoy playing the game. You just got to be able to hit a ball with a bat
Answers:
a) 198,55 s
b) 4687.98 m
Explanation:
a) Speed is defined as the variation of the position (distance traveled )of a body or object with time :
(1)
We are told the cheetah runs a distance of with a speed (Knowing and ), and we need to find the time it takes to travel that distance.
This means we have to find from (1):
(2)
(3)
(4)
b) Now, if we want to know the distance the cheetah will cover with in , we have to isolate from (1):
(5)
(6)
Finally: