For Valentine’s Day Sally received a helium-filled balloon at a party. On returning home she accidently left the balloon in the
1 answer:
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Answer:
0.72 kg per cubic m
Explanation:
Mass = 14.4 kg
Volume = lbh = 4*1*5 = 20 cubic m
Answer:
0.34 s
Explanation:
Given that,
Initial speed of a ball, u = 5.8 m/s
It is kicked at an angle of 17.0° above the horizontal.
The vertical component of velocity will be,
Let it takes t time in the air before it lands on the ground again. It can calculated as :
So, it will take 0.34 seconds.