Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

The driver of a train A travelling at a speed of 54 km/h applies brakes and the train retards uniformly. The train stops in 5 s. Another train B is travelling on the parallel track with a speed of 36 km/h. This driver also applies the brakes and the train retards uniformly. The train B stops in 10 s. Plot speed -time graph for both trains on the same graph. Also calculate the distance travelled by each train after the brakes were applied.
Asked by Topperlearning User | 16 Jun, 2016, 10:35: AM
answered-by-expert Expert Answer

Distance travelled by A = Area under EF =

Distance travelled by B = Area under CD =

Answered by | 16 Jun, 2016, 12:35: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Physics
Time- 0 10 20 30 40 50 Speed- 5 10 15 20 25 30 Find the distance travelled in 50 seconds
Asked by akshatdhamija1409 | 15 Jul, 2022, 11:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Starting from rest, an object is uniformly accelerated to a speed of 60m/s in 20s. The object travels with this speed for next 40s and is then brought to rest by a uniform retardation in the next 30s.Sketch velocity time graph and calculate the acceleration, retardation and the total distance travelled. Hint: acceleration =rate of change of velocity.  distance covered =area under velocity-time graph .
Asked by chaitanyas5425 | 10 Nov, 2021, 09:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
what is velocity time graph
Asked by akakhilesh15597 | 16 Sep, 2021, 08:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
  What information can you get from velocity time graph of an object’s motion? Write three points at least. 
Asked by jasmine09.05.2007 | 10 Jul, 2021, 07:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Please solve the given question
question image
Asked by ak7829426179 | 24 Sep, 2020, 08:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
What is accerlated motion??
Asked by himani.299 | 28 Aug, 2020, 12:06: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
A car is moving with a velocity of 7m per second it's velocity decreasing at the rate of 2.5 metre per second s square. What
Asked by dishasarma2016 | 04 Jul, 2020, 09:15: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
A racing car starts from rest and has uniform acceleiation of 5m/sec ^2.If it travels for 20sec  ,find the final velocity at this instant  
question image
Asked by jsrashokkumar1978 | 30 May, 2020, 12:10: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
The velocity-time graph (v-t) of a car moving along a level road is shown below.Find the average speed of the car in the time interval 0 to 8 s.
question image
Asked by Santosh.kumar0317 | 25 Aug, 2019, 02:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Draw v-t with the data given below and answer the questions below velocity (m/s) 0 10 20 30 20 10 0 time (s) 0 5 10 15 20 25 30 1. Calculate the acceleration during 0 to 15 seconds  2.calculate the acceleration during last 15 seconds    3. Calculate the total distance travelled by the object   
Asked by Anushivashv2 | 23 Jul, 2018, 04:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×