What is the impulse of a 25 N force exerted over 0.5 seconds?

Actually Welcome to the Concept of the Impulse.

Impulse is denoted by 'J'

hence, J = F. dt

so we get as,

J = (25)*(0.5)

J = 750 N-s

===> hence the impulse is 12.5 N-s

Explanation:

K

E

=

1

2

m

v

2

kinetic energy  

=

1

2

* mass * velocity^2

where mass is in kilograms  

k

g

and velocity is in metres per second  

m

/

s

.

here,  

m

=

2000

v

=

5

v

2

=

25

1

2

m

v

2

=

1

2

⋅

2000

⋅

25

=

50000

2

=

25000

K

E

=

25000

J

or

25

k

J

Explanation: