Question

A ball of mass 4 kg is initially traveling at 2 m/s and has a 5 N force

applied to it for 3 s. What is the impulse applied to the ball?
A. 23 kgm/s
B. 12 kgm/s
C. 5 kgm/s
D. 15 kgm/s

Answer 1

D. 15 kgm/s is the value of impulse applied

. Greetings !

Given values

• mass(m) =4kg
• initial velocity (u) =2 m/s
• Force(F) =5N
• Time (t) =3 sec

required value

• Impulse = ?

Solution :

• 
  `impulse = force *  Δtime \\ impulse = (5) * (3)...substitute \: values \\ impulse = 15kgm/s`