Motion in a Plane · Motion in a plane – kinematics
An object is projected with kinetic energy K from a point A at an angle with the horizontal. The ratio of the difference in kinetic energies at points B and C to that at point A (see figure), in the absence of air friction is:
- (1)1 : 2
- (2)2 : 3
- (3)1 : 4
- (4)3 : 4
We corrected a printing error in the original paper
Source printed “the difference in kinetic energies points B and C” (“at” missing).
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See the full 23 Jan 2026, Shift 1 paper
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