Speed is scalar quantity that is defined only by its magnitude and is represented with one value.
Velocity on the other side is a vector quantity that is defined with its magnitude and direction. The speedometer measures and displays the speed of the vehicle.
Where the needle points on the speedometer that is the speed of the vehicle.
The velocity is not explicitly shown, but if f the needle is moving<span>, you can get a rough idea of acceleration. If the needle is going clockwise the vehicle is accelerating.</span>
Answer:
c) The slope is not constant and increases with increasing time.
Explanation:
The equation for the position of this particle (starting from rest is)
We can take derivative of this with respect to time t to get the equation of slope:
As time t increase, the slope would increases with time as well.
Answer:
0.13 km/s²
Explanation:
Convert hours to seconds
1 hour = 60 seconds (60) = 3600 seconds
= 0.052778
= 0.013195
0.13 km/s^2 (Round the three decimals)
In order to get the best result, the student should heat the salt water mixture gently.
Application of heat will increase the amount of the kinetic energy that is available to the molecules of the salt, the particles will be moving faster and in the process they will dissolve faster. Application of heat will make the water molecules too to gain energy and take in more salts more rapidly.