A ball is thrown vertically upwards. Which of the following graphs correctly represents the variation of acceleration with time during its upward motion (neglecting air resistance)?
A straight horizontal line at -9.8 m/sΒ²
A straight line with a negative slope
A straight line with a positive slope
A parabolic curve opening downwards
Related Questions
The minimum phase difference between two simple harmonic oscillations, is
A particle executing S.H.M. of amplitude 4 and =4 s. The time taken by it to move from positive extreme position to half the amplitude is
The displacement of a particle varies according to the relation x=4(cosβ‘Οt+sinβ‘Οt). The amplitude of the particle is
4
8
The displacement of a particle executing SHM is given by the maximum speed of the particle is
The displacement of two identical particle executing SHM are represented by equations {x_1}$$ = \,\,8\,\,\sin and For what value of Ο energy of both the particle is same?
4 units
8 units
16 units
20 units
The motion which is not simple harmonic is
Vertical oscillations of a spring
Motion of simple pendulum
Motion of a planet around the sun
Oscillation of liquid column in a U-tube
A particle executes with amplitude and frequency . The maximum speed of the particle is
The velocities of a body executing are and . When the displacements are and respectively then period is
The ratio of the magnitudes of maximum velocity to the maximum acceleration of a particle making is . The minimum time taken by the particle to move between the extreme points of its path is
1 S
The position vector of a particle as a function of time is given by: . Where R is in meters, t is in seconds and and denote unit vectors along x- and y-directions, respectively. Which one of the following statements is wrong for the motion of the particle?
Magnitude of position vector is a constant
Magnitude of velocity is a constant
Acceleration vector is along -j
Path of the particle is a circle of radius 6 m