Speed is a description of how fast an object moves; velocity is how fast and in what direction it moves. In physics, velocity is speed in a given direction. When we say a car travels at 60 km/h, we are specifying its speed.
It is powered by the Earth's rotation and the moon gives a little boost.
Answer:
D. flight or flight response.
Explanation:
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The answer to the question presented above would be PAR-Q or the <span>Physical Activity Readiness Questionnaire. The purpose of this questionnaire is to identify if you have any medical risks and to know your overall medical background for future reference of prevention of complications whenever you're training.</span>
(1) acceleration, a = 4 m/
(2) acceleration of 10 N, 
= 1 m/ and acceleration of 30 N, 
= 3 m/
Explanation:
- Here, the acceleration of the object could be found using the equation derived in the second law of motion. The equation is given as, F = ma where m is the acceleration of the object, m is the mass of the object and F is the applied on the object.
- Let be the acceleration for force 10 N, to find acceleration rearrange the equation to a =
. When we substitute 10 N force and 10 kg mass of the box in the equation. We will get = 1 m/
- Let be the acceleration for force 30 N, to find acceleration rearrange the equation to F = . When we substitute 30 N force and 10 kg mass of the box in the equation. We will get = 3 m/
- To find the combined, just add the force and substitute in the above equation. Hence, a = 4 m/
