However here coefficient of friction is not given so unable to calculate.
You can calculate it by below formula.
The formula given by
Or
u is coefficient of friction
N is normal reaction.
Here..
box doesn't move means the force if limiting friction is greater than applied force.
Answer:
Explanation:
Hi there!
From the question;
Mass (m)= 88kg
Acceleration due to gravity (g)= 9.8m/s²
Then;
Weight (W) = m*g
= 88*9.8
= 862.4 N
Therefore, the weight of refrigerator is 862 N.
Answer: <u>Option A.</u>
Hope it helps!
Acceleration = final velocity - initial velocity/time taken
A = Vf-Vi/t
A = 1 m/s - 0 m/s / 4 sec
A = 1 m/s / 4 sec
A = 0.25 m/s2
Answer:26.83secs
Explanation: s= UT + 1/2at^2
U=0
S= 1/2at^2
1800=1/2*5t^2
3600=5t^2
3600/5=t^2
720=t^2
t=√720
t=26.83secs
