SuperCoaching AE/JE by Testbook
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A ball is thrown upwards. At its highest point, what is its velocity?
Anonymous Quiz
28%
9.8 m/s
21%
Constant
48%
Zero
3%
Increasing
2
A ball is thrown upwards. At its highest point, what is its acceleration?
Anonymous Quiz
45%
9.8 m/s² downwards
35%
0 m/s²
16%
9.8 m/s² upwards
4%
Depends on initial velocity
A function f(x) satisfies f(x+1) = 2f(x). If f(0) = 3, what is f(3)?
Anonymous Quiz
18%
6
45%
12
35%
24
2%
48
1
What is the derivative of 3x² + 2x?
Anonymous Quiz
10%
3x + 2
79%
6x + 2
7%
x² + x
3%
6x
👏1
A train travels 60kmph for 100km & 80kmph for next 120km. Avg speed?
Anonymous Quiz
13%
68kmph
39%
70kmph
39%
71.11kmph
9%
72.22kmph
A satellite orbits Earth. If its orbital radius doubles, its orbital speed changes by a factor of:
Anonymous Quiz
12%
√2
27%
1/2
59%
1/√2
2%
2
2
What is the area enclosed by |x| + |y| = 1?
Anonymous Quiz
29%
1
34%
2
34%
π
3%
4
A satellite orbits Earth. If its orbital radius doubles, its speed changes by a factor of:
Anonymous Quiz
9%
√2
28%
1/2
57%
1/√2
6%
2
3
A ball is thrown upwards. At its highest point, its velocity is:
Anonymous Quiz
13%
Maximum
18%
Minimum
62%
Zero
7%
Constant
1
Which has highest lattice energy?
Anonymous Quiz
28%
NaCl
30%
KCl
34%
MgO
8%
CaO