A body of mass 18kg moving with velocity 4ms-1 collides w...
A body of mass 18kg moving with velocity 4ms-1 collides with another body of mass 6kg moving in the opposite direction with velocity 10ms-1. If they stick together after the collision, find their common velocity.
12 m/s
13 m/s
2m/s
3m/s
Correct answer is A
m1u1 + m2u2 = (m1 + m2)v
m1 = 18kg, m2 = 6kg, u1 = 4ms-1, u2 = -10m/s
18(4) + 6(-10) = (18+6)v
72 - 60 = 24v
12 = 24v
v = 12 m/s
Given that f(x)=5x2−4x+3, find the coordinates of the point where the gradient is 6....
Solve the inequality x2−2x≥3...
If y=4x−1, list the range of the domain −2≤x≤2, where x is an integer....
Given that P=(49) and \(Q = \begin{pmatrix} -1 & -2 \\ ...
Given that (√3−5√2)(√3+√2)=p+q√6, find q....
Find the coordinates of the point on the curve y=x2+4x−2, where the gradient is zero....