Force-to-acceleration and resulting kinematics

A constant net force is given on a body of known mass, and the question asks for the resulting displacement, velocity, or kinetic energy using Newton's second law combined with SUVAT equations.

jee-main 2009 Q1 View
A particle has an initial velocity $3 \hat { i } + 4 \hat { j }$ and an acceleration of $0.4 \hat { i } + 0.3 \hat { j }$. Its speed after 10 s is
(1) 10 units
(2) $7 \sqrt { 2 }$ units
(3) 7 units
(4) 8.5 units
jee-main 2019 Q1 View
A particle moves from the point $( 2.0 \hat { i } + 4.0 \hat { j } ) \mathrm { m }$, at $\mathrm { t } = 0$, with an initial velocity $( 5.0 \hat { i } + 4.0 \hat { j } ) \mathrm { ms } ^ { - 1 }$. It is acted upon by a constant force which produces a constant acceleration $( 4.0 \hat { i } + 4.0 \hat { j } ) \mathrm { ms } ^ { - 2 }$. What is the distance of the particle from the origin at time 2 s ?
(1) 15 m
(2) $20 \sqrt { 2 } \mathrm {~m}$
(3) 5 m
(4) $10 \sqrt { 2 } \mathrm {~m}$