Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 15 seconds

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Calculate the instantaneous speed and distance fallen for an object that falls freely from rest for 15 seconds

[From: ] [author: ] [Date: 11-09-05] [Hit: ]

= 1103.=>v = 0 + 9.......

please explaIN

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t= 15; u=0;
a=g

v =u +at

v = 0 + 9.81 * 15
= 147.15 m/s
answer
instantaneous speed

s=ut + 0.5 at^2
s = 0 + 0.5 * 9.81 * 15^2
= 1103.625m
answer
distance fallen

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v = u + at
v = 0 +g(15)
v = 0+ (10)(15)
v= 150 ms^-1

s=(v+u)t/2
s =(150+0)15/2
s = 1125m

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BY v = u + gt
=>v = 0 + 9.8 x 15
=>v = 147 m/s

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15 seonds

1

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