If α and u are angle of projection and initial velocity of a projectile respectively, the total time of flight, is given by
T = u sin 2α/g
T = u sin²α/g
T = u sin²α/2g
T = 2u sinα/g
Correct Answer :
D. T = 2u sinα/g
Related Questions
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½ sec
1 sec
1.2 sec
1.5 sec
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A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is
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A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If r is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be
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[r (π - 0.25)]/(π - 0.5)
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Pick up the correct statement from the following:
If two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities
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150 J
200 J
400 J
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ED
DC
BC
BD
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u² sin² α/2g
u² tan² α/2g
u² sin 2α/2g
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5.0 cm
8.75 cm
7.85 cm
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h/3
h/4
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If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon
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80 g
100 g
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6 rad/sec²
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m2
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m4
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2 t
3 t
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Algebraic sum of the forces is zero
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18° 48'
19° 48'
20° 48'
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30 kg
35 kg
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Straight line
Involute
Centroid
Spiral