Questions
A 15 kg block is initially moving along a smooth horizontal surface with a speed of v = 4 m/s to the left. It is acted by a force F, which varies in the manner shown. Determine the velocity of the block at t=15 seconds.
Given that,
detailed solution
Correct option is A
Change in linear momentum ΔP=∫Fdt15vf+u=∫015 40cosπ10tdtvf=−4+4015sin(π/10)tπ/10015=−4+40015π(−1)=−12.5m/sTalk to our academic expert!
Similar Questions
A block of mass kg rests on a horizontal frictionless xy-plane. What would be the acceleration of the block if it is subjected to two forces as shown in figure?
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