3 women push a stalled car. Each woman pushes with a #425# #N# force. What is the mass of the car if the car accelerates at #0.85# #m##/##s^2#?

1 Answer
May 23, 2018

Answer:

#1500# kilograms

Explanation:

Assuming that the women push the car in the same direction, then the total force is:

#F_"net"=425 \ "N"*3#

#=1275 \ "N"#

To find the mass, we use Newton's second law of motion, which states that,

#F=ma#

where:

  • #F# is the force applied in newtons

  • #m# is the mass of the object in kilograms

  • #a# is the acceleration of the object in meters per second squared

So, we get:

#m=F/a#

#=(1275 \ "N")/(0.85 \ "m/s"^2)#

#=1500 \ "kg"#