please do it as fast as you can.
Answers
Explanation:
1)1. UNIFORM ACCELERATION: uniform acceleration is a type of in which the velocity of an object changes by an equal amount in equal time period is called uniform acceleration
2. NON UNIFORM ACCELERATION:change of non equal velocity in equal amount of time is called non uniform acceleration
Answer:
1.A body is said to be in uniform acceleration when it is increasing its speed equally in equal intervals of time. A body is said to be in non uniform acceleration when it is increasing unequal amount of speed in equal intervals of time
2.Initial speed u=80 km/h=80×
5/18
=22.22 m/s
Final speed v=60 km/h=60×
5/18
=16.67 m/s
Using v=u+at
Or 16.67=22.22+α×5
⟹ a=−1.1 m/s (metre per second square)
3.Given: t=10 min=10×60=600s
Initial speed of train is given as: u=0 ms
−1
Final speed of train is given as: v=40 km h
−1
=
3600
40×1000
=11.1 ms
−1
Now acceleration is given by the relation:
a=
t
v−u
=
600
11.1−0
=0.0185 ms
−2
4.The definition of acceleration is: Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.
5.Acceleration is the rate of change of velocity of an object. where a is acceleration, v is the final velocity of the object, u is the initial velocity of the object and t is the time that has elapsed. This equation can be rearranged to give: v = u + at.