1.

A ball of 200 g mass is moved with 20 m/s, and decreases to 10 m/s in 5 seconds due to air friction. So, force of friction due to air is1N4N0.4 N10 N​

Answer»

The force due to FRICTION will be equal to 0.4 N

Explanation:

  • From the definition of force, we know

  • F = ma

  • We also know that , a = (Vi-Vf)/t

  • F = m x (Vi-Vf)/t)

  • Putting the value

  • F = 200 x (20-10)/5

  • F = 400 gms-2

  • We need to convert it to KG to MAKE Neuton

  • F = 0.4 kgms-2/ 0.4 N

Learn more about frictional force from the link below

brainly.in/question/4679475



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