contestada

For a freely falling object dropped from rest, what is the acceleration at the
end of the 3rd second of fall?
O
O a m/s/s
Ob -9.8 m/s/s
0 c -29.4 m/s/s
O /
D -44.1 m/s/s

Respuesta :

onyebuchinnaji

The acceleration of the object after 3 seconds of fall is -9.8 m/s².

The given parameters;

  • Initial velocity of the object, u = 0
  • Time of motion of the object, t = 3 seconds

Acceleration is the change in velocity per change in time of motion.

The acceleration of the object after 3 seconds of fall is calculated as follows;

  • Since the object is in free fall, the object experiences only acceleration due to gravity.
  • The magnitude of this acceleration due to gravity is 9.8 m/s²
  • The direction of this acceleration is downwards

 

Thus, the acceleration of the object after 3 seconds of fall is -9.8 m/s².

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