answer all questions from picture
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1 .change in speed = 2m/s (8-6 =2)
here,only magnitude will be considered n Not direction)
2.change in velocity vector = 8j-6i=√8²+6²=10m/s
3. road
4.h max = u²(y-dir)/2g
= 9.8*9.8/2*9.8
=4.9m
7.u = 25
v =0
t=10
v =u + at
0 =25-10a
2.5=a
F = ma
=120*2.5
=300N
6.40N
I am not sure.... check it out
here,only magnitude will be considered n Not direction)
2.change in velocity vector = 8j-6i=√8²+6²=10m/s
3. road
4.h max = u²(y-dir)/2g
= 9.8*9.8/2*9.8
=4.9m
7.u = 25
v =0
t=10
v =u + at
0 =25-10a
2.5=a
F = ma
=120*2.5
=300N
6.40N
I am not sure.... check it out
Anonymous:
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Answered by
1
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