Question

खालील सारणी पूर्ण करा.

Answer 1

★ उत्तर -

1)A) u=2 m/s

a=4m/s^2

t=3sec

V=u+at

V=2+4×3

v=2+12

v= 14m/s

B)V=20m/s

u=

a=5m/s^2

t=2sec

v=u+at

2o=u+ 5×2

20=u+10

u=20/10

u=2

2)

A)U=5

a=12

t=3

v=ut+1/2at^2

v=5×3+(1/2)12×9

v=15+6×9

v=15+54

v=69

B)

u= 7

t=4

v=92

V= ut+1/2at^2

92= 7×4+(1/2)a×16

92= 28+(1/2)a×16

92=28+(1/2)16×a

92=28+8×a

a= (92-28)/8

a=64/8

a=8m/s^2

3)

A)u=4

a=3

S=

V=8

V^2=u^2+2as

(8)^2=(4)^2+2×3s

64=16+6s

64-16=6s

s=48/6

s= 8m

B)v=10

a=5

s=8.4

u=

v^2=u^2+2as

(10)^2=u^2+2×5×8.4

100=u^2+84

u^2=100-84

u^2=16

u=4m/s

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