Question #987f5

Question

1450 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-07-25T15:30:48

Q1
Given

$u \to Initial velocity = 10 \frac{m}{s}$ $u->"Initial velocity"=10m/s$

$a \to Acceleration = 1 \frac{m}{s^{2}}$ $a->"Acceleration"=1m/s^2$

$t \to Time = 5 s$ $t->"Time"=5s"$

$v \to Velocity after 5s = ?$ $v->"Velocity after 5s"=?$

Applying eqation of motion

$v = u + a \cdot t = 10 + 1 \cdot 5 = 15 \frac{m}{s}$ $v=u+a*t=10+1*5=15m/s$

Q2
Given

$u \to Initial velocity = 1 \frac{m}{s}$ $u->"Initial velocity"=1m/s$

$a \to Acceleration = 1 \frac{m}{s^{2}}$ $a->"Acceleration"=1m/s^2$

$t \to Time = 10 s$ $t->"Time"=10s"$

$s \to Displacement after 10s = ?$ $s->"Displacement after 10s"=?$

Applying eqation of motion

$s = u \cdot t + \frac{1}{2} \cdot a \cdot t = 1 \cdot 10 + \frac{1}{2} \cdot 1 \cdot 10^{2} = 60 m$ $s=u*t+1/2*a*t=1*10+1/2*1*10^2 =60m$