Download App

Motion in One Dimension — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSMotion in One Dimension2 Marks
Question
Figure given below shows a velocity-time graph for a car starting from rest. The graph has three parts $AB, BC$ and $CD.$

(a) Is the magnitude of acceleration higher or lower than that of retardation ? Give a reason .
(b) Compare the magnitude of acceleration and retardation .
✓

Answer

(a) The magnitude of acceleration is lower as the slope of line AB is less than that of line $CD.$
(b) Slope of line $AB = v_o/t$
Slope of line $CD = v_o/0.5t$
Slope of line AB/Slope of line $CD = (v_o /t)/(v_o /0.5t)$
Slope of line AB:Slope of line $CD :: 1:2.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Motion in One Dimension→Motion in One Dimension — all question types→PHYSICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Assuming the speed of sound in air equal to 340 m/s and in water equal to 1360 m/s, find the time taken to travel a distance 1700 m by sound in (i) air (ii) water.
→
Calculate the distance and displacement in the following case:
→
Give one example in each case where : The force is of contact, and Force is at a distance
→
State and define the S.I. unit of potential difference.
→
Figure shows the same block of wood floating in three different liquids $A, B$ and $C$ of densities $\rho_1, \rho_2$ and $\rho_3$ respectively. Which of the liquid has the highest density? Give a reason for your answer.
→
With the help of a diagram, show that water is a bad conductor of heat.
→
State the type of motion represented by the following sketches in Figures.
Give an example of each type of motion.

→
What is an artificial magnet? State two reasons why do we need artificial magnets .
→
State four properties of magnetic field lines.
→
Find the volume of a book of length 25 cm , breadth 18 cm and height 2 cm in $m ^3$.
→