Advertisements
Advertisements
प्रश्न
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.
Advertisements
उत्तर
Initial reading of the odometer of the car = 57321.0 km
The final reading of the odometer of the car = 57336.0 km
Distance covered by the car
= Final reading of the odometer of the car - Initial reading of the odometer of the car
= 57336.0 - 57321.0
= 15 km
The given car starts at 8:30 a.m. and stops at 8:50 a.m.
Therefore, the time taken by the car to cover the distance is (8:50 − 8:30) min = 20 min
Distance covered by the car = 15 km
Time taken by the car = 20 min
Speed = `"Distance covered"/"Time taken" `
= `15/20`
= 0.75 km/min
Again
60 min = 1 h
20 min = `1/60 xx 20`
= `1/3` h
Time taken by the car = `1/3` h
Speed = `"Distance covered"/"Time Taken"`
= `15/(1/3)`
= 45 km/h.
APPEARS IN
संबंधित प्रश्न
If a body traverses a distance in direct proportion to the time, the speed of the body is ______.
A boy covers half of his journey with a uniform speed of u and the other half with a uniform speed of v. What is the average speed for the whole journey?
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
Vehicles moving with varying speeds are said to be in uniform motion.
Suppose a boy is enjoying a ride on a merry go round which is moving with a constant speed of 10 m/s. It implies that the boy is
The time period of a given pendulum is constant.
The cheetah the fastest animal among terrestrial animals run with an average speed of ______.
A ______ is the fastest land animal.
The SI unit of speed is a kilometer.
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
