A freely falling body has a constant acceleration of 9.8 m/s2. This means that: Group of answer choicesthe acceleration of the body increases by 9.8 m/s2 during each secondthe speed of the body increases by 9.8 m/s during each secondthe body falls 9.8 m during each secondthe acceleration of the body decreases by 9.8 m/s2 during each secondthe body falls 9.8 m during the first second
Question
A freely falling body has a constant acceleration of 9.8 m/s2. This means that: Group of answer choicesthe acceleration of the body increases by 9.8 m/s2 during each secondthe speed of the body increases by 9.8 m/s during each secondthe body falls 9.8 m during each secondthe acceleration of the body decreases by 9.8 m/s2 during each secondthe body falls 9.8 m during the first second
Solution
The correct answer is: the speed of the body increases by 9.8 m/s during each second.
Here's why:
The acceleration due to gravity is a constant 9.8 m/s². This means that for every second an object is falling freely (i.e., only under the influence of gravity and no other forces like air resistance), its speed increases by 9.8 m/s.
This is based on the formula for acceleration, which is change in velocity (or speed, in this case) per unit time. So, if an object is accelerating at 9.8 m/s², that means its speed is increasing by 9.8 m/s every second.
The other options are incorrect. The acceleration does not increase or decrease—it remains constant at 9.8 m/s². And while the object does fall further each second it's in free fall, it does not fall a constant 9.8 m every second. The distance it falls each second increases because its speed is increasing.
Similar Questions
A body released from rest falls with an acceleration of 9.81 m/s2. If the same body is thrown upward, and air resistance is negligible, its acceleration will be Question 11Answera.upward and greater than 9.81 m/s2b.downward and greater than 9.81 m/s2c.downward and less than 9.81 m/s2d.upward and equal to 9.81 m/s2e.downward and equal to 9.81 m/s2
What happens to the acceleration of a falling object as it speeds up?2 marksIt remains constantIt decreasesIt increasesIt becomes zero
The acceleration of freely falling bodies due the force of attraction of the other body is called Acceleration due to gravity. It is a constant quantity for a given attracting body at a given place. Like for earth on or near its surface, the average value of acceleration due to gravity is 9.8 m/s
The acceleration of a dense object during freefall is approximately 9.8m/s2 in the absence of all other forces except:
If a body moving with initial, constant velocity of 10 m s¹, accelerates for 2 seconds at a constant rate of 12 m s², final velocity of body will be a) 30 m s¹ b) 34 m s-¹ c) 40 m s-¹ d) 45 m s-
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