Advertisements
Advertisements
Question
Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.
Advertisements
Solution
Time taken by Salma to reach her school from her home = 15 min
= 15 × 60
= 900s
Speed of her bicycle = 2 m/s
Speed = `"Distance covered"/"Time taken"`
Distance covered = Speed × Time taken
= 2 × 900
= 1800 m
= 1000 m = 1 km
∴ 1800 m = `1/1000 xx 1800 `
= 1.8 km
APPEARS IN
RELATED QUESTIONS
Define Speed.
The relation S= v x t can easily be used to find the tota l distance covered by a body moving with non -uni form speed. (Yes/ no)
During circular motion, which physical quantity of the body:
Remains constant
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
A train travels the first 30km of its journey at 30km/h. Find the speed it should travel the next 90km to have an average speed of 60km/h.
Length of scale : metre :: Speed of aeroplane : ______.
Distances between two cities are measured in kilometres.
A ______ is the fastest land animal.
Usain Bolt crossed 100 meters in ______ seconds and made a world record.
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
