NEET UG c11phy_wep_work_ke — practice questions
16 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG c11phy_wep_work_ke in the app →Per NCERT §5.1.1 (scalar product), A · B equals which expression?Per NCERT §5.1.1, the dot product of two PERPENDICULAR vectors is which value?Per NCERT §5.1.1, î · î (dot product of a unit vector with itself) equals which value?Per NCERT §5.3, the WORK done by a constant force F on an object undergoing displacement d is which?Per NCERT §5.3, work done by a force perpendicular to the displacement (e.g. centripetal force in UCM) is whicPer NCERT §5.3 + Points 2, work done by FRICTION (or viscous force) on a moving body is which?Per NCERT §5.4, the KINETIC energy of a body of mass m moving with speed v is which?Per NCERT §5.2, the WORK-ENERGY theorem states that net work done equals which quantity?Per NCERT §5.4, the kinetic energy is which kind of quantity?Per NCERT Example 5.4, a bullet of mass 50 g at 200 m/s emerges from plywood with 10% of initial KE. The emergPer NCERT §5.4, the dimensions of kinetic energy (and of work) are which?Per NCERT §5.1.1 (Summary 7), the scalar product is which property algebraically?A porter carries a $20$ kg bag horizontally for $50$ m at constant height. The work done by him on the bag agaA cricket ball of mass $0.15$ kg moves at $20$ m/s. Its kinetic energy is:A delivery boy raises a $10$ kg sack to a $2$ m shelf in $4$ s. The power expended (using $g = 10$ m/s$^2$) isA carrom coin elastically collides head-on with another identical coin at rest. After collision: