- #1
jmanz
- 5
- 0
A sprinter running a 100 meter race starts at rest, accelerates at constant acceleration
with magnitude A for 2 seconds, and then runs at constant speed until the end.
a) Find the position (relative to the start position) and speed of the runner at the end of
the 2 seconds in terms of A. ANS: 2A , Vx=2A
b) Assume that the runner takes a total of 10 seconds to run the 100 meters. Find the
value of the acceleration A. You can leave your answer in terms of a fraction but clearly
indicate the units. ANS: 100/18
...struggling with b) !
with magnitude A for 2 seconds, and then runs at constant speed until the end.
a) Find the position (relative to the start position) and speed of the runner at the end of
the 2 seconds in terms of A. ANS: 2A , Vx=2A
b) Assume that the runner takes a total of 10 seconds to run the 100 meters. Find the
value of the acceleration A. You can leave your answer in terms of a fraction but clearly
indicate the units. ANS: 100/18
...struggling with b) !