plz give the answer guys this all and also step by step plz its my request and give no wise answer
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Sorry I don't know
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the picture is not clear so i can't identify the questions
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Answer:
8.
(a) distance travelled by the car in first 2s,
d = 1/2*2*3 = 3m/s
(b) retardation = 3/1 = 3 m/s^2
Breaking force = m*a
= 1000*1 = 1000 N
9.
Resultant momentum,
= 5*2 - 2*3 = 10 - 6 = 4
10.
F1=F2
a2 = 5*a1
Then,
m1=5*m2
Ratio
m1/m2 = 5:1
11.
Speed = 36km/h = 36*1000/3600
= 10 m/s
Retardation = 10/2 = 5 m/s^2
Distance covered = 1/2*a*t*t
= 1/2*5*2*2
= 10 m
12. Final velocity
v = a*t = 9.8*8 = 78.4 m/s
Height
s = 1/2*a*t*t
= 1/2*9.8*8.8
= 313.6 m
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