A soccer ball is at rest and is then kicked giving it a final velocity of 6.0 m/s. The ball has a mass of
1 answer:
Answer:
The average force applied to the ball is 84N
Step-by-step explanation:
This problem bothers on the impulse of a force
Given data
Mass of ball m= 0.28kg
Initial speed u= 0m/s
Final speed v= 6m/s
Time of impact t= 0.02s
We know that the impulse of a force
Ft= mv-mu
Hence the force is
F= (mv-mu)/t
F=m(v-u)/t
F= 0.28(6-0)0.02
F= 1.68/0.02
F= 84N
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perp. -1/2
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Answer:
- First take 5 empty. Digits.
- The no of digits are 9 (1-9).
- The last no must be even so . The total no of even no’s . Are 4 (2,4,6,8)
- The probability of last digit is 4
- There are remaing 8 digits so. Place them where. U required. The probability are. 8, 7,6,5(no reputations)
- The final answer is 4*8*7*6*5=6720 ways
