A golf ball of mass 100 g at rest is hit with a striker. Find the impulse of the hit if the ball stops after traveling a horizontal distance of 100 m with a uniform retardation of 5 m / s 2 ?

Question

A golf ball of mass 100 g at rest is hit with a striker. Find the impulse of the hit if the ball stops after traveling a horizontal distance of 100 m with a uniform retardation of 5 m / s 2 ? (A) 0.3 Ns (B) 0.1 Ns (C) 3.16 Ns (D) 0.9 Ns

Tardigrade Admin · Accepted Answer

v 2- u 2=2 as 0- u 2=2 ×-5 × 100 - u 2=-2 × 500 ⇒ u =√1000=31.6 m / s Impulse = change in momentum =m(v-u)=0.1(0-31.6)=-3.16 Ns

Q. A golf ball of mass $100 g$ at rest is hit with a striker. Find the impulse of the hit if the ball stops after traveling a horizontal distance of $100 m$ with a uniform retardation of $5 m / s^{2} ?$

$0.3 N s$

$0.1 N s$

$3.16 N s$

$0.9 N s$

$v^{2} - u^{2} = 2$ as
$0 - u^{2} = 2 \times - 5 \times 100$
$- u^{2} = - 2 \times 500$
$\Rightarrow u = 1000 = 31.6 m / s$
Impulse = change in momentum
$= m (v - u) = 0.1 (0 - 31.6) = - 3.16 N s$

Q. A golf ball of mass 100g at rest is hit with a striker. Find the impulse of the hit if the ball stops after traveling a horizontal distance of 100m with a uniform retardation of 5m/s2?

0.3Ns

0.1Ns

3.16Ns

0.9Ns