The 100-lb platform rolls without slipping along the 10° incline on two pairs of 16-in.-diameter wheels. Each pair of wheels with attached axle weighs 25 lb and has a centroidal radius of gyration of 5.5 in. The platform has an initial speed of 3 ft/sec down the incline when a tension T is applied through a cable attached to the platform. If the platform acquires a speed of 3 ft /sec up the incline after the tension has been applied for 8 seconds, what is the average value of the tension in the cable?

Transcribed Image Text:

3 ft/sec T 16" B A 10°