हिंदी

If we denote speed by S, distance by D and time by T, the relationship between these quantities is ______.

Advertisements
Advertisements

प्रश्न

If we denote speed by S, distance by D and time by T, the relationship between these quantities is ______.

विकल्प

  • S = D × T

  • T = `"S"/"D"`

  • S = `1/"T" xx "D"`

  • S = `"T"/"D"`

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

If we denote speed by S, distance by D and time by T, the relationship between these quantities is `underlinebb(S = 1/T xx D)`.

Explanation:

Speed (S) is calculated as the distance (D) traveled divided by the time (T) taken to travel that distance.

Therefore, the correct formula is `S = D/T`

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 13: Motion and Time - MULTIPLE CHOICE QUESTIONS [पृष्ठ ६९]

APPEARS IN

एनसीईआरटी एक्झांप्लर Science [English] Class 7
अध्याय 13 Motion and Time
MULTIPLE CHOICE QUESTIONS | Q 5. | पृष्ठ ६९

संबंधित प्रश्न

What can you say about the motion of an object whose distance-time graph is a straight line parallel to the time axis?


Given figure shows the distance-time graph of three objects A, B and C. Study the graph and answer the following questions:

  1. Which of the three is travelling the fastest?
  2. Are all three ever at the same point on the road?
  3. How far has C travelled when B passes A?
  4. How far has B travelled by the time it passes C?

The speed-time graph for a car is shown in the following figure:

  1. Find how far the car travels in the first 4 seconds. Shade the area on the graph that represents the distance travelled by the car during the period.
  2. Which part of the graph represents uniform motion of the car?

What conclusion can you draw about the speed of a body from the following distance-time graph ?


A car is travelling at 20 m/s along a road. A child runs out into the road 50 m ahead and the car driver steps on the brake pedal. What must the car’s deceleration be if the car is to stop just before it reaches the child ?


Two friends leave Delhi for Chandigarh in their cars. A starts at 5 am and moves with a constant speed of 30 km/h, whereas B starts at 6 am and moves with a constant speed of 40 kmh-1. Plot the distance-time graph for their motion and find at what time the two friends will meet and at what distance from Delhi.


Starting from A, Paheli moves along a rectangular path ABCD as shown in figure. She takes 2 minutes to travel each side. Plot a distance-time graph and explain whether the motion is uniform or non-uniform.


Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given in the figure.

  1. What does the graph between points B and C indicate about the motion of Boojho?
  2. Is the motion between 0 to 4 minutes uniform or non-uniform?
  3. What is his speed between 8 and 12 minutes of his journey?

The area under velocity time graph represents ______.


Assertion: The position-time graph of a uniform motion in one dimension of a body can have a negative slope
Reason: When the speed of the body decreases with time then, the position-time graph of the moving body has a negative slope.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×