Question
The effective acceleration of a body, when thrown upwards with acceleration $a$ will be
✓
Answer
(c) Net acceleration of a body when thrown upward = acceleration of body -acceleration due to gravity = $ a -g$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Air is filled in a motor tube at ${27^o}C$ and at a pressure of $8$ atmospheres. The tube suddenly bursts, then temperature of air is $[{\rm{Given}}\,\,\gamma \,{\rm{of}}\,{\rm{air}} = \,1.5]$
→The number of waves contained in unit length of the medium is called
According to Bohr's theory the moment of momentum of an electron revolving in second orbit of hydrogen atom will be
A wire of circular cross section has inner portion of radius $R$ made of material of resisitivity $\rho$ and is surrounded by an outer portion of thickness $R$ made of a material of double resisitivity. Find the resistance of length $l$ of such wire
→A solid sphere of radius $R$ is placed on smooth horizontal surface. A horizontal force $F$ is applied at height $h$ from the lowest point. For the maximum acceleration of centre of mass, which is correct?
→A long solenoid is fabricated to closely winding wire of radius $0.5\,mm$ over a cylindrical frame so that the successive turns nearly touch each other, the magnetic field at the centre of solenoid if it carries a current of $5\,A$
→Two radiations of photons energies $1 \;eV$ and $2.5\; eV$ , successively illuminate a photosensitive metallic surface of work function $0.5\; eV$. The ratio of the maximum speeds of the emitted electrons is
→Two masses of $1\,kg$ and $2\,kg$ respectively are connected by a massless spring as shown in figure. A force of $20\,N$ acts on the $2\,kg$ mass at the instant when the $1\, kg$ mass has an acceleration of $10\,ms^{-2}$ towards right, the acceleration of the $2\,\,kg$ mass is ......... $ms^{-2}$
→A body of mass $4 \,kg$ weighs $4.8\,kg$ when suspended in a moving lift. The acceleration of the lift is
→Maximum magnification produced by simple micro-scope of focal length $f=5 \,cm$ is
→