Question

if a 5 n force acts on an object for 4 s, what is the impulse delivered to the object? $j = ft$
9n·s
20n·s
1.25n·s
0.8n·s

Explanation:

Step1: Identify given values

Force $F = 5\ \text{N}$, time $t = 4\ \text{s}$

Step2: Apply impulse formula

Use $J = Ft$
$J = 5\ \text{N} \times 4\ \text{s}$

Answer:

20 N · s