A force of 200N acting on a body of mass 20kg initially a...
A force of 200N acting on a body of mass 20kg initially at rest causes it to move a distance of 320m along a straight line for t secs. Find the value of t.
4s
6s
8s
10s
Correct answer is C
F = ma
200=20a⟹a=10m/s2
s=ut+12at2
320=(0×t)+1210t2
320=5t2⟹t2=64
t=8secs
Two functions f and g are defined on the set of real numbers by f:x→x2+1 and \(g : x ...
If P(x - 3) + Q(x + 1) = 2x + 3, find the value of (P + Q). ...
Given that r = (10 N , 200º) and n = (16 N , 020º), find (3r - 2n). ...
Solve the inequality x2−2x≥3...
If 3x2+px+12=0 has equal roots, find the values of p ....
The function f : x → x2 + px + q has turning point when x = -3 and remainder of -6 when d...
If Un = kn2 + pn, U1 = -1, U5 = 15, find the values of k and p....
If \sin x = -\sin 70°, 0° < x < 360°, determine the two possible values of x....
Given that P = \begin{pmatrix} y - 2 & y - 1 \\ y - 4 & y + 2 \end{pmatrix} and |P| = -2...