Question

How long would it take Jesse with the acceleration of -2.50 m/s to bring his bicycle with an initial velocity of 13.5 m/s to a complete stop

Answer 1

Answer:

Time taken by Jesse to bring his bicycle =5.4 Sec

Explanation:

acceleration of bicycle = -2.5  m/sec²

Initial velocity of by cycle u =13.5 m/sec,

final velocity of bicycle v = 0 (since bicycle completely stop finally)

Let the time taken to stop the bicycle completely = t sec

We now by equation of motion,

$v= u + a\cdot t$

putting the value of u,v & a in the equation

0=13.5 -2.5 x t ( a is taken as negative since velocity of bicycle is reducing)

$t=\frac{13.5}{2.5}$ = 5.4 Sec