SuperCoaching AE/JE by Testbook
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A disc rolls without slipping. Fraction of total energy that is rotational is:
Anonymous Quiz
17%
1/4
50%
1/3
23%
1/2
11%
2/3
1
A body covers 2m in the first 2s and 8m in next 4s. What is the average velocity?
Anonymous Quiz
15%
1 m/s
28%
3 m/s
50%
5/3 m/s
7%
8/3 m/s
A disc rolls without slipping. Fraction of total energy that is rotational is:
Anonymous Quiz
28%
1/2
38%
1/3
25%
2/3
9%
1/4
If f(x)+f(1/x)=f(x)f(1/x), f(4)=65, find f(5).
Anonymous Quiz
13%
26
54%
129
29%
130
4%
66
The value of lim (x->0) sin(x)/x is:
Anonymous Quiz
17%
0
45%
1
30%
8%
-1
A body of mass 2kg has initial velocity 1m/s. A force acts for 2s giving it a velocity of 3m/s. Find force.
Anonymous Quiz
15%
1N
58%
2N
18%
3N
9%
4N
A particle's position is x=t³-6t²+9t. When is its acceleration zero?
Anonymous Quiz
16%
1 s
47%
2 s
31%
3 s
6%
4 s
If f(x)+f(1/x)=x+1, then f(x)=?
Anonymous Quiz
18%
x
34%
1/x
33%
x+1
15%
x/(x-1)
If f(x)+f(1/x)=x+1, then find f(2).
Anonymous Quiz
14%
7/2
44%
5/2
33%
3/2
9%
1/2
2
Which has the highest boiling point?
Anonymous Quiz
33%
1-Butanol
25%
Butanal
23%
Butane
20%
Butanoic acid