A force F acts on a body of mass 12kg increases its speed...
A force F acts on a body of mass 12kg increases its speed from 5 m/s to 35 m/s in 5 seconds. Find the value of F.
36 N
48 N
72 N
108 N
Correct answer is C
\(F = ma \)
\(a = \frac{v - u}{t}\)
\(\therefore F = m(\frac{v - u}{t})\)
\(F = 12(\frac{35 - 5}{5}) = 12 \times 6 = 72 N\)
Given that \(\begin{pmatrix} 1 & -3 \\ 1 & 4 \end{pmatrix} \begin{pmatrix} -6 \\ P \end{pmat...
If P = \(\begin {pmatrix} 2 & 3\\ -4 & 1 \end {pmatrix}\), Q = \(\begin{pmat...
A car is moving at 120\(kmh^{-1}\). Find its speed in \(ms^{-1}\)....
Evaluate \(\int_{\frac{1}{2}}^{1} \frac{x^{3} - 4}{x^{3}} \mathrm {d} x\)....
If \(\sqrt{x} + \sqrt{x + 1} = \sqrt{2x + 1}\), find the possible values of x....
If the polynomial \(f(x) = 3x^{3} - 2x^{2} + 7x + 5\) is divided by (x - 1), find the remainder....
Three forces, F\(_1\) (8N, 030°), F\(_\2) (10N, 150° ) and F\(_\3) ( KN, 240° ...
A particle is acted upon by forces F = (10N, 060º), P = (15N, 120º) and Q = (12N, 200º...