Answer:
c. Equal to the magnitude of the average velocity for the same time period if the direction of motion does not change.
Explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.
This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.
The average speed of an object during a specified period of time is equal to the magnitude of the average velocity traveled or covered in the same time period and in a straight line i.e if the direction of motion does not change.
For the answer to the question above asking to c<span>alculate the work done to stretch an elastic string by 40cm if a force of 10N produces an extension of 4cm in it. The needed force for this is 100N of work</span>
The type of ball is independent, as it doesn’t affect the experiment.
Hey there!
<span>Which statement best summarizes Gregor Mendel’s contribution to science?
Mendel is considered the "father of genetics". He did NOT increse the number of peas </span>
<span>produced by a single plant using cross-breeding techniques, discover grean peas and yellow peas, or invent the green pea by cross-breeding thousands of pea plants.
This means your answer is option D.
Hope this helps
Have a great day (:
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