Question

An object starting from rest travels with an acceleration of 5 m/s 2 . What will be its velocity after 3 s ?




[i want a graph paper answer].​

Answer 1

Step-by-step explanation:

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EXPLANATION.

GIVEN

object is start from rest = u = 0

acceleration = 5 m/s^2

time = 3 seconds

TO FIND IT'S VELOCITY.

initial speed = 0

final velocity = v

acceleration = 5 m/s^2

time = 3 seconds

From newton first equation of kinematics,

v = u + at

v = 0 + 5 X 3

v = 15 m/s

Therefore,

velocity = 15 m/s

MORE INFORMATION.

1) = Newton first equation of kinematics

\bigstar\green{\boxed{v \: = u + at}}★

v=u+at

2) = Newton second equation of

kinematics

\bigstar\green{\boxed{s \: = ut \: + \frac{1}{2}a {t}^{2}}}★

s=ut+

2

1

at

2

3) = Newton third equation of kinematics

\bigstar{\green{ \boxed{{v}^{2} = u {}^{2} + 2as}}}★

v

2

=u

2

+2as