Question

A ball of 100 g mass is moved with 10 m/s, and decreases to 5 m/s in 5 seconds due to air friction, so force of friction due to air is​

Answer 1

Answer:

data

• m=100g=0.1kg
• vi=10m/s
• vf=5m/s
• f= ?
• t=5s

solution:

f=ma=m (vf-vi)/t

f=0.1×(5-10)/5

f=0.1 (-5)/5

☆f= -0.1N

is answer

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