1)Riders on the Power Tower are launched skyward with an acceleration of 4 g , a
ID: 1278822 • Letter: 1
Question
1)Riders on the Power Tower are launched skyward with an acceleration of 4g, after which they experience a period of free fall.
What is a 60 kg rider's apparent weight during the launch?
2)
A 2300 kg truck has put its front bumper against the rear bumper of a 2300 kg SUV to give it a push. With the engine at full power and good tires on good pavement, the maximum forward force on the truck is 18,000 N.
a) What is the maximum possible acceleration the truck can give the SUV?
1)Riders on the Power Tower are launched skyward with an acceleration of 4g, after which they experience a period of free fall.
What is a 60 kg rider's apparent weight during the launch?
2)
A 2300 kg truck has put its front bumper against the rear bumper of a 2300 kg SUV to give it a push. With the engine at full power and good tires on good pavement, the maximum forward force on the truck is 18,000 N.
a) What is the maximum possible acceleration the truck can give the SUV?
Explanation / Answer
Apparent weight = m (g + a)
= 60 * (4g + g) = 60 * 5 g
= 300 g = 300 * 9.8
= 2940 N
--------------------------------------
amax = 18000 / 2300 + 2300
= 3.91 m/s2
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