- 64
- 66
- 75
- 78

Explanation: Use Pythagoras theorem where c

So here the c is magnitude of the resultant vector. Hence, c

and c, the magnitude of the resultant vector = 78.1

Question 2: What will be the direction of the resultant vector in the figure of question 1?

- north east
- north west
- south east
- north west

Question 3: As per the figure, find the horizontal component of the force.

- 18.8 N
- − 18.8 N
- 19.0
- − 19.0 N

Explanation: the magnitude of horizontal component of the force = cosine(20°)× 20 N = 18.79 N

Question 4: As per the figure mentioned in question 3, find the vertical component of the force.

- 7 N
- − 6.84 N
- 6.84 N
- 9 N

Explanation: the magnitude of vertical component of the force = sine(20°)× 20 N = 6.84 N

Question 5: Assume that a body of mass of 50 g and a volume of 2 cm

Find the item's density in kg/m

- 27,000 kg/m
^{3} - 25,000 kg/m
^{3} - 25 k/cm
^{3} - 25,000 g/m
^{3}

Explanation: density = mass / volume = 50 × 10

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Date of last modification: Summer , 2019