SuperCoaching AE/JE by Testbook
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A body of mass 2kg has initial velocity 1m/s. A force acts on it for 2s, giving it a velocity 3m/s. Impulse is:
Anonymous Quiz
17%
2 Ns
43%
4 Ns
36%
6 Ns
3%
8 Ns
A ball collides elastically with a wall. The only conserved quantity is:
Anonymous Quiz
25%
Kinetic Energy
38%
Potential Energy
25%
Linear Momentum
12%
Total Energy
If f(x) + f(1/x) = x+1/x, then f(x) is:
Anonymous Quiz
19%
x
38%
1/x
23%
x^2+1
21%
Cannot be uniquely determined
1
If f(x)+f(1/x)=x+1, then f(x)=?
Anonymous Quiz
19%
x
25%
1/x
46%
(x^2+x+1)/x
10%
x+1
If f(x)+f(1/x)=f(x)f(1/x), f(4)=65, find f(5).
Anonymous Quiz
23%
126
54%
124
16%
26
6%
66
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If f(x) = x² + 2x + 1, find f(a-1).
Anonymous Quiz
19%
a² + 2a
39%
29%
a² + 4a + 4
13%
a² - 2a + 4