Question

An object starts from rest and moves with a constant acceleration. It travels a distance of 800m in

40s. Find the acceleration. Find the force acting on it if its mass is 500K​

Answer 1

Answer:

a=0.75 m/s^2 F=30N

Explanation:

simply apply Newton's second equation of motion

s=ut+1/2at^2

it's starting from rest so initial velocity u=0m/s

t= 40s so a can be calculated

600=0×t+1/2a ×40^2

1600a=1200

a=0.75m/s^2

and force can be calculated as

F=ma

F=40×0.75=30N

Explanation:

hope it's helpful

Answer 2

Answer:

a=0 them force equals mass into acceleration

then force equals 0 Newton