Linear Motion at Constant Acceleration Problem

  • Thread starter euphoriae
  • Start date
  • #1
3
0

Homework Statement


A cyclist starts at the top of a straight slope with an initial velocity of 3.00m/s. Five seconds later, she is at the bottom of the incline, having traveled 50.0m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be constant.


Homework Equations



[tex]\Delta[/tex]x= V0 + .5at2

The Attempt at a Solution


I tried to find the acceleration first.

I got:

a= (2*[deltaX - V-initia]l)/ T2

a= [2(50-3)]/25
I keep getting 3.76 as the acceleration but the books answer is 2.80m/s2

Thanks in advanced!
 

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,164
507

Homework Statement


A cyclist starts at the top of a straight slope with an initial velocity of 3.00m/s. Five seconds later, she is at the bottom of the incline, having traveled 50.0m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be constant.


Homework Equations



[tex]\Delta[/tex]x= V0t + .5at2

I keep getting 3.76 as the acceleration but the books answer is 2.80m/s2

Thanks in advanced!
You forgot the t after V_o! See above in red.
 
  • #3
3
0
wow I feel dumb, thanks for the help! spent like 30mins trying to figure out what I did wrong =p
 

Related Threads on Linear Motion at Constant Acceleration Problem

Replies
6
Views
206
Top