A body of $5 \,kg$ is moving with a velocity of $20 \,m/s$. If a force of $100\,N$ is applied on it for $10\,s$ in the same direction as its velocity, what will now be the velocity of the body………$m/s$

A body of mass $2\, kg$ moves under a force of $(2 \hat{ i }+3 \hat{ j }+5 \hat{ k }) \,N$. It starts from rest and was at the origin initially. After $4 \,s$, its new coordinates are $(8, b, 20)$. The value of $b$ is …….. . (Round off to the Nearest Integer)

When $1\, N$ force acts on $1 \,kg$ body that is able to move freely, the body receives

A body of mass $5\, kg$ starts from the origin with an initial velocity $\overrightarrow {u\,} \, = \,30\hat i + 40\hat j\,m{s^{ – 1}}$. If a constant force $\overrightarrow {F\,} = – (\hat i + 5\hat j)N$ acts on the body, the time in which the y-component of the velocity becomes zero is ……… $\sec$