Question

plzz ansr all.....


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Answer 1

Explanation:

1)

20=1/2a(4)

a=10

160=1/2a(16)

a=20

v=u+at

v=0+(10)(7)

v=70

Answer 2

Explanation:

1)

20=1/2a（4）

a=10

160=1/2a（16）

a=20

v=u+at

v=O+（10)(7）

v=70

hope it's help

have anice day