Question

If the vertical component of a vector is 60 units and
the vector is making an angle 60° with the horizontal,
then the horizontal component of the vector is
20
(a)
73
units (6) 20 V3 units
(c) 30 V3 units
(d) 60 units
​

Answer 1

Explanation:

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vertical component of a vector is given by the expression:

vsintheta where v is the vector

angle given in the question is 60 °

=> 60=v×sin60°

=> 60 =√3v/2

=> 120√3/3=v

=> 40√3 is the magnitude of velocity

horizontal component of a vector is given by the expression:

vcos theta

v=40√3,theta=60°

thus,

40√3×cos60°= horizontal vector

=> 20√3 units...

thus, option b is correct

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Answer 2

ANSWER→

☞vertical component of a vector is given by the expression: vsin theta

☞where v is the vector

☞angle given in the question is 60 °

☞60=v×sin60°

☞60 =√3v/2

☞120√3/3=v

☞ 40√3 is the magnitude of velocity

horizontal component of a vector is given by the expression: vcos theta

☞v=40√3,theta=60°

thus,

☞40√3×cos60°= horizontal vector

☞20√3 units...

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