80.76°
75.00°
71.99°
15.00°
Correct answer is A
No explanation has been provided for this answer.
14.06N
13.00N
9.83N
8.26N
Correct answer is D
No explanation has been provided for this answer.
1.7N
4.5N
9.0N
13.0N
Correct answer is A
\(F = F \cos \theta + F \sin \theta\)
where \(F \cos \theta = \text{horizontal component}\)
\(F \sin \theta = \text{vertical component}\)
Horizontal component of resultant = sum of horizontal compoents of individual forces
= \(8 \cos 30 + 10 \cos 150 = 6.928 - 8.66 \approxeq - 1.7N\)
The sum, \(S_{n}\), of a sequence is given by \(S_{n} = 2n^{2} - 5\). Find the 6th term
112
67
45
22
Correct answer is D
\(S_{n} = 2n^{2} - 5\)
\(T_{n} = S_{n} - S_{n - 1}\)
\(T_{6} = S_{6} - S_{5}\)
= \((2(6^{2} - 5) - (2(5^{2} - 5) = 62 - 40 = 22\)
22m
18m
14m
10m
Correct answer is C
\(a = \frac{v - u}{t} = \frac{9 - 5}{2} = 2 ms^{-2}\)
\(s = ut + \frac{1}{2}at^{2} = 5(2) + \frac{1}{2}(2 \times 2^{2})\)
= \(14m\)
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