Design an incline plane to help a person in a wheel chair up steps that are 60 cm high. The person and the chair weigh together 900 N. The greatest force that the person can exert is 150 N. Find the length of the inclined plane that is required. Hint: this is a 2 step problem. Find MA first, then find the length of the incline plane.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

35.98  million  mile my friend