3. A car travels with uniform acceleration between three lamp posts, equally spaced at 18 m apart. It passes the second post 2 seconds after passing the first post and passes the third post 1 second later. (a) Find the car’s acceleration (b) Find the car’s velocity when it passes the first post
3. A car travels with uniform acceleration between three lamp posts, equally spaced at 18 m apart. It passes the second post 2 seconds after passing the first post and passes the third post 1 second later. (a) Find the car’s acceleration (b) Find the car’s velocity when it passes the first post
You have speeds of u, u + 2a and u + 3a. Write equations for the distance traveled (average speed times time) between the posts and solve.
What is the average speed between the first and second posts? And between the second and third posts?
You have speeds of u, u + 2a and u + 3a. Write equations for the distance traveled (average speed times time) between the posts and solve.
What is the average speed between the first and second posts? And between the second and third posts?
Please post your working if you have any issues.
Thank you so much, I got the right answer for a, however I can’t seem to do b. I got that t=2, but when I put it into v=u+at I don’t get the right answer
Thank you so much, I got the right answer for a, however I can’t seem to do b. I got that t=2, but when I put it into v=u+at I don’t get the right answer