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(b) 8 m/s²
(c) θ = 90°
(c) 90°
(c) Neither periodic nor simple harmonic
(c) R = 4 H
The x and y coordinates of a particle at any time t is given by x = 7t + 4t² and y = 5t, where x and y are in metre and t in seconds. The acceleration of particle at t = 5s is
(b) 8 m/s²
(b) 8 m/s²
See lessIf for any two vectors A + B = A – B in a plane, then what is angle between A and B
(c) θ = 90°
(c) θ = 90°
See lessAt the upper most of a projectile, its velocity and acceleration at an angle of
(c) 90°
(c) 90°
See lessThe circular motion of a particle wth constant speed is
(c) Neither periodic nor simple harmonic
(c) Neither periodic nor simple harmonic
See lessFor an object thrown at 45° to the horizontal, the maximum height (H) and horizontal range (R) are related as
(c) R = 4 H
(c) R = 4 H
See less