How much force is needed to stop a 90-kg soccer player if he decelerates at 15 m/s²?

A.
6 N

B.
15 N

C.
135 N

D.
1350 N

Question

How much force is needed to stop a 90-kg soccer player if he decelerates at 15 m/s²?
 
 A.
6 N
 
 B.
15 N
 
 C.
135 N
 
 D.
1350 N

anonymous · Answer

Force = mass × accelerationF = m* a

m = mass = 90 kg
a = acceleration = 15 m/s^2
F = force

anonymous · Answer

So what would the formula be if it were filled out?

anonymous · Answer

f=90*-15?

anonymous · Answer

$$How much force is needed \to stop a 90-kg soccer player if he decelerates at 15 m/s ^{2}$$

anonymous · Answer

Thats the question without the diamond ?s ok

ipwnbunnies · Answer

That's correct, Dragon.
I guess the sign doesn't matter, since the direction is implied by the term 'decelerating'.

anonymous · Answer

@Directrix  Sry to bother you again... but i need help

anonymous · Answer

@Directrix ?

directrix · Answer

directrix · Answer

That is the work of @Paulodomingos

directrix · Answer

He wrote 1350 N. Look at his work.

directrix · Answer

F = m* a

m = mass = 90 kg
a = acceleration = 15 m/s^2
F = force

@Euler271