A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is
40 sec
30 sec
20 sec
15 sec
Correct Answer :
C. 20 sec
Related Questions
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Open polygon
Closed polygon
Parallelogram
In SI units, the units of force and energy are respectively
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Newton and joule
kg wt and joule
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,
5 N
10 N
15 N
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500 metres
1000 metres
1500 metres
2000 metres
Free body diagram is an
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Isolated joint with internal forces acting on it
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A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is 
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A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec²)
15 m/sec
25 m/sec
40 m/sec
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60 N
80 N
100 N
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A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is
0.5 m/sec
1.0 m/sec
1.5 m/sec
2.5 m/sec
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by
g1
g2
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bh3/3
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2 sec
3 sec
4 sec
5 sec
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Negative work
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3 m/sec and 2 m/sec
3 m/sec and 3 m/sec
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237.5 cm4
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6 rad/sec²
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1/2
3/2
2
3
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Centripetal force
Centrifugal force
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μ
2μ
3μ
½μ
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Compound pendulum
Second's pendulum
None of these
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Directly proportional to the square of its angular velocity
Inversely proportional to the square of its angular velocity
Inversely proportional to its angular velocity
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1.6 t
9.6 t
8.5 t
0.5 t