Calculate: A baseball accelerates downward at 9.8 m/s2. The force pulling the ball downward is 1.4 N. What is the mass of the baseball?

Given : Acceleration of the ball is 9.8 m / s² . The pulling force is 1.4 N .

To Find : The mass of the ball .

Solution : It is given that a ball accelerates download with a acceleration of 9.8 m / s² . And the acting force is 1.4 N .

We know that , Force acting is equal to the product of mass and acceleration . That is ,

⇒ Force = mass × accelerⁿ

⇒ 1.4 N = mass × 9.8 m / s²

⇒ mass = 1.4 N / 98 m/s²

⇒ mass = 14N / 98 m/s².

⇒ mass = 1/7 kg .

Hence the mass of the object is 1/7 kg ≈ 0.14 kg.

b

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