760N
800N
805N
840N
Correct answer is D
\(\text{Net force = Upward force - weight}\)
\(ma = F - mg \implies F = ma + mg \)
\(F = (80 \times 10) + (80 \times 0.5) = 800 + 40 = 840N\)
The distance s in metres covered by a particle in t seconds is \(s = \frac{3}{2}t^{2} - 3t\). Find i...
The gradient of the line passing through the points P(4, 5) and Q(x, 9) is \(\frac{1}{2}\). Find the...
If \((x - 3)\) is a factor of \(2x^{3} + 3x^{2} - 17x - 30\), find the remaining factors....
A particle of mass 2.5 kg is moving at a speed of 12 m/s. If a force of magnitude 10 N acts against ...
A box contains 14 white balls and 6 black balls. Find the probability of first drawing a black ball ...
A function \(f\) is defined by \(f :x→\frac{x + 2}{x - 3},x ≠ 3\).Find the inverse of \(f\)&...
Two bodies of masses 8 kg and 5 kg travelling in the same direction with speeds x m/s and 2 m/s resp...
The diagram above is a velocity- time graph of a moving object. Calculate the distance travelled whe...
Given that \(P = {x : \text{x is a factor of 6}}\) is the domain of \(g(x) = x^{2} + 3x - 5\), find ...
p and q are statements such that \(p \implies q\). Which of the following is a valid conclusion from...
Spatial Reasoning Questions and Answers
Microsoft Office Questions and Answers
Quantitative Reasoning Questions and Answers
Logical Reasoning Questions and Answers
Situational Judgement Questions and Answers
Data Interpretation Questions and Answers
Abstract Reasoning Questions and Answers
Personality Test
Puzzles Questions and Answers
Nigeria General Knowledge Questions and Answers
Verbal Reasoning Questions and Answers
Typing Speed and Accuracy Test
Numerical Reasoning Questions and Answers
See all →