Ask a Doubt
Request a call back

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

CBSE Class 9 Answered

A car accelerates uniformly from 18km to 36km h in 5s calculate the acceleration and the distance covered by the car in that time. 
Asked by shobhavittal.sv | 30 Jul, 2019, 07:45: PM
Expert Answer
Initial speed = u = 18 km/hr = 5 m/s
 
Final sped = v = 36 km/hr = 10 m/s
 
acceleration a = (v-u)/t = (10-5)/5 = 1 m/s2
 
Distance travelled S = u t + (1/2) a t2 = 5×5 + (1/2)×1×52 = 37.5 m
Answered by Thiyagarajan K | 31 Jul, 2019, 07:58: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 9 - Physics
What is the SI Unit of "Intensity of Sound"?
Asked by manaskumarbiswasbrb | 04 Feb, 2023, 08:35: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
explain human ear with lable diagram
Asked by sm6878261 | 12 Jan, 2023, 07:42: AM
ANSWERED BY EXPERT
CBSE 9 - Physics
What is sound 
Asked by ahirejay2020 | 07 Jan, 2023, 10:41: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
why pressure increases with depth in fluid
Asked by sknv159357 | 05 Jan, 2023, 08:29: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
An object starts from rest and travels 20m in first 2 s and 160 m in 4 s . Find its velocity 7 s after the start .
Asked by asyadav1230 | 20 Dec, 2022, 07:17: AM
ANSWERED BY EXPERT
CBSE 9 - Physics
Two points A and B are located on the floor of a room 30cm and 20cm away from a wall. The distance between the points parallel to the wall is 50cm. An insect is at moving on the floor at 5cm/s. It has to first reach a point C on the wall and then reach B such that AC and BC make equal angles with Normal to the wall at C. The time taken for this  motion will be
Asked by rajesh kumar | 21 Oct, 2022, 08:15: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
A student starts with a velocity 40 km/hr for school at 4 km away from his house. Due to closing of school he returns soon to his house with a velocity of 60km/hr.His average velocity will be.
Asked by manognabandla2004 | 08 Sep, 2022, 07:55: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
what is the weight of an object at the centre of the earth 
Asked by advscjaglan | 09 Aug, 2022, 08:22: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
solve this problem
Asked by kunaljat51 | 24 Jul, 2022, 10:25: PM
ANSWERED BY EXPERT
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
My Class Videos Tests ₹ Plans Ask a Doubt
Get Free Sample Papers
×