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Starting from rest a particle accelerates at 2m/s for 10s then it moves with constant velocity for 30 s and then retards and comes to rest, the total distance covered by the particle will be
an object is dropped from a height of 200m, if S1, S2, and S3 be the distance covered in 1s, 2s and 4s respectively then the ratio of S1:S2:S3 will be
E.g: 9876543210, 01112345678
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Syllabus
1) (velocity)2/3
2) (velocity)3/2
3) (distance) 2
4) distance)-2
Explain in detail and no links please
1:their path must intersect at same point
2: they must collide at same point
3: they will collide only if a1u1=a2u2
4: if u1 > u2 & a1 < a2; the particles will have the same speed at some point of time
(A) the work don by F is YA2/ L
(B) the work done by F is YA l2/2L
(C) the elastic potential energy stored in the wire is YAl2/2L
(D) heat is produced during the elongation
(1) 8 V (2) 16 V (3) 24 V (4) 32 V
Starting from rest a particle accelerates at 2m/s for 10s then it moves with constant velocity for 30 s and then retards and comes to rest, the total distance covered by the particle will be
an object is dropped from a height of 200m, if S1, S2, and S3 be the distance covered in 1s, 2s and 4s respectively then the ratio of S1:S2:S3 will be
(i) The height to which the liquid will rise in the capillary is -