Aptitude Test Problems in Physics Science for Everyone by S Krotov ( PDFDrive.com )

Solutions 137 whence the angle of rotation of the carriage about the centre of the circle is cp = vt 3 /R ----- 6.28 2n rad, i.e ...

(^138) Aptitude Test Problems in Physics whence sin a = v 1 /v 2 = 10/20 = 1/2, a = 30°. Then the time of motion of the balls be ...

Solutions 139 1.38*. It can easily be seen that the ball attains the equilibrium position at an angle a of deflection of the thr ...

140 Aptitude Test Problems in Physics The period of small (but still damped) oscillations of the ball can be determined from the ...

Solutions (^141) elongation Al of the string will be such as if it were acted upon by the force mg/2 at the point of suspension ...

(^142) Aptitude Test Problems in Physics stant velocity. They can be found from the fol- lowing equations: mat = Tl — mg, mat = ...

Fig. 150 Solutions^143 The distances traversed by the block in uni- formly varying motion at the initial velocity v before it st ...

144 Aptitude Test Problems in Physics and obtain the following equation: mg sin cc + ttmg cos a = ma 1. The corresponding equati ...

Solutions 145 otherwise, the "support" would acquire an infinitely large acceleration: N 1 sin a = N2 sin a, N^1 = N2. Moreover, ...

(^146) Aptitude Test Problems in Physics the force of the same magnitude on the stationary support. From Eq. (1), we obtain mug ...

Solutions (^147) where al is the projection of the acceleration of the cylinder on the xi axis. The wedge is acted upon by the f ...

Fig. 154 148 Aptitude Test Problems in Physics The body also has the same acceleration. We can write the equation of motion for ...

Solutions 149 sin n/6 = 1/2 into this equation, we obtain the ratio: M 2-3sina —4 m sing a The velocity of the body at the momen ...

(^150) Aptitude Test Problems in Physics where d 1 and d 2 are the arms of the forces mg and 7' respectively. From Eqs. (1) and ...

Solutions 151 Thus, for an arbitrary relation between the angles a and 0, the rod is in equilibrium if (^1 1 2) 3 I (^ ...

(^152) Aptitude Test Problems in Physics and Ffr2 will rotate the smaller disc in the direc- tion of rotation of the larger disc ...

Solutions 153 rotation. When co = Q, the relative velocities of the regions with the centres of mass at points Al and A 2 are pe ...

154 Aptitude Test Problems in Physics the ball is v u (the axis of motion is directed along the motion of the ball) in the refer ...

Solutions 155 The horizontally flying bullet hitting the body will not change the vertical component of the mo- mentum of the fo ...

(^156) Aptitude Test Problems in Physics The kinetic energy of the system after the collision (sticking together) of the bodies ...