Homework Help: physics

Posted by parul on Sunday, May 27, 2012 at 10:23am.

A cyclist is cycling at uniform velocity of 8m/sec for 8 sec then applies brakes and cycle come to rest in next 10 sec. calculate
a)Distance traveled by uniform velocity.
b)distance traveled by non-uniform velocity
c)total distance traveled
d)the average velocity in entire journey

physics - Elena, Sunday, May 27, 2012 at 3:54pm
(a) s1 =v•t =8•8 =64 m,
(b)
v(final) =v - a•t,
v(final) =0,
a =v/t,
s =v•t - at²/2 =
= v•t - v•t²/2•t =v•t/2=8•8/2=32 m.
(c)
s =s1+s2 = 64+32 = 96 m.
(d)
v(ave) = s/t =96/(8+10) = 5.33 m/s.

Answer this Question

Related Questions

physics - A cyclist is cycling at a uniform velocity of 8m/s for 8 seconds. He ...
physics - a body moves with a uniform velocity of 2m/sec for 5 sec then velocity...
physics - a car traveled at uniform velocity of 20m/sec for 5 sec the brakes are...
physics - a cyclist start from rest and accelerate uniformly to achieve a ...
physics - 1 a cyclist moving on a circular track of radius 100m completes one ...
physics - A car starts from rest and accelerates uniformaly at the rate of 0.98m...
Calculus - Solve: The posistion of a particle moving along a coordinate line is ...
Physics please help!! - A car starts from rest and travels for 5 seconds with a ...
physics - a train starts from rest and accelerates uniformly to achieve a ...
physics - a train starts from rest and accelerates uniformly to achieve a ...

For Further Reading

First Name:
School Subject:
Answer: