100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
KINEMATICS Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution CA$11.60   Add to cart

Exam (elaborations)

KINEMATICS Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

 7 views  0 purchase
  • Course
  • Institution

KINEMATICS Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

Preview 2 out of 13  pages

  • June 24, 2024
  • 13
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
avatar-seller
K.V. Aizawl


KINEMATICS
*rest and Motion are relative terms, nobody can exist in a state of absolute rest or of
absolute motion.

*One dimensional motion:- The motion of an object is said to be one dimensional
motion if only one out of three coordinates specifying the position of the object
change with time. In such a motion an object move along a straight line path.

*Two dimensional motion:- The motion of an object is said to be two dimensional
motion if two out of three coordinates specifying the position of the object change
with time. In such motion the object moves in a plane.

*Three dimensional motion:- The motion is said to be three dimensional motion if all
the three coordinates specifying the position of an object change with respect to time
,in such a motion an object moves in space.

*The magnitude of displacement is less than or equal to the actual distance travelled
by the object in the given time interval.

Displacement ≤ Actual distance

*Speed:- It is rate of change of distance covered by the body with respect to time.

Speed = Distance travelled /time taken

Speed is a scalar quantity .Its unit is meter /sec. and dimensional formula is
[M0L1T-1] .It is positive or zero but never negative.

*Uniform Speed:- If an object covers equal distances in equal intervals of time than
the speed of the moving object is called uniform speed. In this type of motion,
position – time graph is always a straight line.

*Instantaneous speed:-The speed of an object at any particular instant of time is
called instantaneous speed. In this measurement, the time ∆t→0.




15

, K.V. Aizawl


When a body is moving with uniform speed its instantaneous speed = Average
speed = uniform speed.

*Velocity:- The rate of change of position of an object in a particular direction with
respect to time is called velocity. It is equal to the displacement covered by an
object per unit time.

Velocity =Displacement /Time

Velocity is a vector quantity, its SI unit is meter per sec. Its dimensional formula is
[M0L1T-1]. It may be negative, positive or zero.

*When a body moves in a straight line then the average speed and average velocity
are equal.

*Acceleration:- The rate of change of velocity of an object with respect to time is
called its acceleration.

Acceleration = Change in velocity /time taken

It is a vector quantity, Its SI unit is meter/ sec.2 and dimension is [M0L1T-2], It may be
positive ,negative or zero.

*Positive Acceleration:- If the velocity of an object increases with time, its
acceleration is positive .

*Negative Acceleration :-If the velocity of an object decreases with time, its
acceleration is negative . The negative acceleration is also called retardation or
deacceleration.

*Formulas of uniformly accelerated motion along straight line:-
For accelerated motion, For deceleration motion
V = u + at v = u - at
S = ut + 1/2 at2 S = ut - 1/2 at2
V2 =u2+ 2as V2= u2- 2as
Sn = u + a/2(2n- 1) Sn = u - a/2( 2n- 1)
16

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Hkane. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$11.60. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$11.60
  • (0)
  Add to cart