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Asked by mc8may | 03 Apr, 2023, 03:41: PM
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Equation of cross section of parabolic surface is of type ,  y = k x2 , where k is constant .
 
We are given only the y-coordinate of contact point of block of mass . There is no information about x-coordinate.
 
If we know x-coordinte , then we can find the angle θ between normal to the surface and vertical direction . 
 
Then ' mg cosθ ' is the normal reaction force , i.e. contact force.
 
Hence the answer is (4) insufficient information .
Answered by Thiyagarajan K | 04 Apr, 2023, 01:56: AM
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JEE main - Physics
how to draw straight line graph and how to identify y-intercept and slope
Asked by Machinenineha | 27 Mar, 2024, 05:28: PM
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JEE main - Physics
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Asked by baskaranfathima83 | 21 Jan, 2024, 09:34: PM
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JEE main - Physics
a body covers 1/3 part of its journey with a velocity of 2 m/s , next 1/3 part with a velocity of 3m/s and rest journey with a velocity 6m/s .The average velocity of the body will be
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Asked by tripathiji9876good | 10 Jan, 2024, 04:22: PM
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JEE main - Physics
if the leniar momentum is increased by 5%then the kinetic energy will be increased by
Asked by meenu0000156 | 05 Jan, 2024, 12:05: PM
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JEE main - Physics
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Asked by myselfsnehu5577 | 29 Nov, 2023, 01:19: PM
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JEE main - Physics
a boat moves with velocity which is n times less than the river flow velocity. At what angle to the stream direction must the boat move to minimize drifting.    I din understand how dx/d theta=ud/v sec theta tan theta-d sec^2 theta like whr did the addition sec theta come from??? so pls explain tht
Asked by joanmaria916 | 17 Jul, 2023, 11:24: AM
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JEE main - Physics
As shown in Figure, a bullet weighs 0.3 N and moving with a velocity of 400 m/sec hits centrally a 30 N block of wood moving away at 15 m/sec and gets embedded in it. Find the velocity of the bullet after the impact and the amount of kinetic energy lost.
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Asked by theavengers0203 | 22 May, 2023, 11:54: PM
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JEE main - Physics
physics questions
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Asked by mc8may | 03 Apr, 2023, 03:41: PM
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JEE main - Physics
An object moves from y = 12 m to y = 15 m in 5 s. What can be said about the magnitude of displacement and the path length?
Asked by khushpatel9579 | 16 Feb, 2023, 07:50: PM
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JEE main - Physics
A particle start from rest and move along a straight line with uniform acceleration the ratio of time to cover successive distance in the ratio 1:3 is
Asked by yadavashishkryadav | 13 Jan, 2023, 08:38: AM
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