Advertisements
Advertisements
Question
What name is given to the speed in a specified direction ?
Advertisements
Solution
Speed of a body in a specified direction is called velocity.
APPEARS IN
RELATED QUESTIONS
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
Bus X travels a distance of 360 km in 5 hours whereas bus Y travels a distance of 476 km in 7 hours. Which
bus travels faster ?
If a sprinter runs a distance of 100 metres in 9.83 seconds, calculate his average speed in km/h.
The tip of seconds’ hand of a dock takes 60 seconds to move once on the circular dial of the clock. If the radius of the dial of the clock be 10.5 cm, calculate the speed of the tip of the seconds’ hand of the clock. `("Given" π= 22/7)`.
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :
(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
Give one example of following motion :
Uniform velocity
Give one example of following motion :
Variable velocity
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
Derive th e equation of motion.
S = ut+ `1/2` at2,
Where the symbols have their usual meanings
Which of the following figures (Fig. 8.3) represents uniform motion of a moving object correctly?
