220
222
223
225
Correct answer is D
s = 120t - 16t2 - 16t2
dsdt=120−32t
120 - 32t = 0
32t32 = 12032
t = 3.75
s = 120(3.75) - 16(3.75)2
= 450 - 225
= 225
Find the acute angle between the lines 2x + y = 4 and -3x + y + 7 = 0. ...
If 36,p,94,q are consecutive terms of an exponential sequence (G.P.). Find the sum o...
The gradient ofy= 3x2 + 11x + 7 at P(x.y) is -1. Find the coordinates of P. ...
Two functions f and g are defined on the set of real numbers by f:x→x2+1 and \(g : x ...
Find the unit vector in the direction of the vector −12i+5j...
If T=(−2−538), find T−1, the inverse of T...
If (x - 3) is a factor of 2x2−2x+p, find the value of constant p....
If V = plogx, (M + N), express N in terms of X, P, M and V...
An exponential sequence (G.P.) is given by 8√2, 16√2, 32√2, ... . Find the n\(^{th...