Expert Answer Step 1 (d) The weight of the crate is W=mg =(40 kg) (9. 81 "/ ) =392. 4 N 392 N Step 2 (e) The crate is moving in horizontal direction only. So, the sum of vertical components Normal and the weight of the crate cancels out. From the free body diagram, it is obvious that the only horizontal force acting on the crate is the frictional force. Therefore, the net force on the crate is the frictional force, Fnet=-F, =-313. 92 N Negative sign because of the direction of the force Step 3 (f) From Newton's law the deceleration of the crate is a=4 313.92 N 40 kg =7. 848 "/ As per guide lines first 3 sub parts are solved. kindly post remaining as a new post.
Expert Answer Step 1 (d) The weight of the crate is W=mg =(40 kg) (9. 81 "/ ) =392. 4 N 392 N Step 2 (e) The crate is moving in horizontal direction only. So, the sum of vertical components Normal and the weight of the crate cancels out. From the free body diagram, it is obvious that the only horizontal force acting on the crate is the frictional force. Therefore, the net force on the crate is the frictional force, Fnet=-F, =-313. 92 N Negative sign because of the direction of the force Step 3 (f) From Newton's law the deceleration of the crate is a=4 313.92 N 40 kg =7. 848 "/ As per guide lines first 3 sub parts are solved. kindly post remaining as a new post.
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Transcribed Image Text:Expert Answer
Step 1
(d)
The weight of the crate is
W=mg
=(40 kg) (9. 81 m/)
=392. 4 N
392 N
Step 2
(e)
The crate is moving in horizontal direction only. So, the sum of vertical components Normal
and the weight of the crate cancels out.
From the free body diagram, it is obvious that the only horizontal force acting on the crate is
the frictional force. Therefore, the net force on the crate is the frictional force,
Fnet=-F,
=-313. 92 N
Negative sign because of the direction of the force
Step 3
(f)
From Newton's law the deceleration of the crate is
a=4
=13.92 N
40 kg
=7. 848 m/
sper guide lines first 3 sub parts are solved. kindly post remaining as a new post.

Transcribed Image Text:Given data
Holg
speed (u) = 80km/h
lie = or8
mags f Crate (m) =401g
Draw the free budy diagram.
Abbly the Condition af equilibriun,
hog
EFyso
N-yog =0
N= 40xg.B)
N= 392,4 N
© Calculute the friction between Crate and road
= 016 x 39214
E= 313.92 N
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