Jim Master attempts to lift a 100 kg barbell, but his strength fails. If the net force is 400N, identify the dominant force the magnitude and direction of the acceleration.
A)
Tension, 4 m/s/s upward
B)
Tension, 9.8 m/s/s upward
C)
Gravity, 4 m/s/s/ downward
nare
D)
Gravity. 9.8 m/s/s downward

a) In this system the only force is the gravitational force, acting as a centripetal force.

b) In this system, the acting force is the friction force, inward.

c) In this system, only tension and gravity act as forces

d) In this system, only the normal force inside the dryer acts.

Explanation:

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles