at the mid-point of the meter rule
40cm from the lighter mass
40cm from the heavier mass
60cm from the heavier mass
indeterninate because the meter-rule is light
Correct answer is C
No explanation has been provided for this answer.
Which of the following is NOT a force?
Friction
Tension
Upthrust
Weight
Impulse
Correct answer is E
No explanation has been provided for this answer.
0.16
0.63
0.80
1.60
2.00
Correct answer is A
F = \(\mu\)R
= \(\mu\)mg
8 = \(\mu\) x 5 x 10
\(\mu\) = 0.16
0.10ms-2
7.07ms-2
10.00ms-2
14.10ms-2
20.00ms-2
Correct answer is B
R = \(\sqrt {10^2 + 10^2}\)
R = 14.14N
R = F = ma
14.14 = 2 x a
a = 7.07ms-1
95m
100m
500m
905m
1000m
Correct answer is A
Distance in 105, using, x = ut + \(\frac{1}{2}\)at2
x = (0 x 10) + (\(\frac{1}{2}\) x 10 x 10 x 10) = 500m
distance in 9s; x - (0 x 9) + (\(\frac{1}{2}\) x 10 x 9 x 9) = 405m
distance in last is = difference
= 500 - 405
= 95m