Question

a steel sphere is held by an electromagnet and when the current is switched off it turns on. it is found that the steel spear starting from rest takes 450 m/s to fall through 1m. what value does it gives for acceleration due to gravity. how far does the spear falls in first 200m/s​

Answer 1

Answer:

s=ut+ 1/2at2

1m=u+1/2a(450×10power-3)power2 a=9.8765m/spower2 (this is value of accerlation due to gravity) in the=200m cube s=ut+1/2at square=0+1/2(9.8765) s=1/2(9.877) (0.04) =0.1975m 0.2m Answer

Answer 2

Answer:

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