Physics, asked by fizakhan56, 1 year ago

If F=8i-2j and r= 6i+8k then F.r is equal to:
a.6
b.8
c.48
d.32

Answers

Answered by sidhiranu

4

Answer:

C . 48 I think it is right

fizakhan56: how solution?

fizakhan56: solution plzzz

Answered by uditnagar2003

7

Answer:

c) 48

Explanation:

F= 8i-2j+0k, r= 6i+0j+8k

than F.r is

F.r=8*6+(-2)*0+0*8

F.r = 48

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