# A small block of mass 10 g is projected along the smooth path from rest as shown in the given figure below. Find its speed at the point B.

Q: A small block of mass 10 g is projected along the smooth path from rest as shown in the given figure below. Find its speed at the point B.

(a) 1 m/s

(b) 10 m/s

(c) 20 m/s

(d) None of these

$\displaystyle m g h = \frac{1}{2} m v^2$
$\displaystyle v^2 = 2 g h = 2 \times 10 \times 5$
$\displaystyle v^2 = 100$