please question answer
Answers
3.Second
4.The unit of distance is the metre (m) and of time is second(s). Therefore the basic unit of speed is m/s.
Answer:
(3) what is the basic unit of time ?
= second.
(4) what is the basic unit of speed ?
= The unit of distance is the metre (m) and of time is second(s). Therefore the basic unit of speed is m/s.
(5) what is speedometer ?
= a piece of equipment in a vehicle that tells you how fast you are travelling.
(6) what is distance-time graph ?
= A distance-time graph shows how far an object has travelled in a given time. It is a simple line graph that denotes distance versus time findings on the graph. Distance is plotted on the Y-axis. Time is plotted on the X-axis.
(7) what is speed ?
= Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a given amount of time, while a slow-moving object covers a relatively small amount of distance in the same amount of time.
(8) What is oscillatory motion ?
= Oscillatory motion is defined as the to and fro motion of the body about its fixed position. Oscillatory motion is a type of periodic motion. Examples of oscillatory motion are vibrating strings, swinging of the swing etc.
(9) what is motion ?
= Motion, in physics, change with time of the position or orientation of a body. ... Motion along a line or a curve is called translation. Motion that changes the orientation of a body is called rotation.
(10) what is circular motion ?
= In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. ... Since the object's velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation.
(11) give an example of oscillatory motion ?
= Oscillatory motion is defined as the to and fro motion of the body about its fixed position. Oscillatory motion is a type of periodic motion. Examples of oscillatory motion are vibrating strings, swinging of the swing etc.
(12) what is non-uniform motion ?
= This type of motion is defined as the motion of an object in which the object travels with varied speed and it does not cover same distance in equal time intervals, irrespective of the time interval duration.
(13) what is simple pendulum ?
= A simple pendulum is defined as an object that has a small mass, also known as the pendulum bob, which is suspended from a wire or string of negligible mass. When displaced, apendulum will oscillate around its equilibrium point due to momentum in balance with the restoring force of gravity.
(14) A car cover a distance of 100 KM in 5 hours, calculate its speed ?
= 20 km/hour.
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