Physics - Kinematics Question with Solution | TestHub

PhysicsKinematicsMiscellaneousEasy2 minQB

PhysicsEasyinteger

A particle moves vertically with an upward initial speed $v_{0} = 10.5 m / s$ . If its acceleration varies with time as shown in $a - t$ graph in the figure, find the velocity of the particle at $t = 4 s$

Answer:

Solution:

$Δ v = A re a u n d er a - t c u r v e = 5 + \frac{6}{5} - \frac{3}{10} - 10 = - 7.5$

$x = \frac{1}{3}$ (from similar triangles)

$v_{4} = v_{0} + Δ v = 10.5 - 7.5$

$v_{4} = 3 m / s$

Stream:JEESubject:PhysicsTopic:KinematicsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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