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Class Management | Help Module #3- Homework Begin Date: 9/20/2020 12:01:00 AM - Due Date: 6/12/2022 11:59:00 PM End Date: 9/28/2023 11:59:00 PM (3%) Problem 32: Grains from a grain hopper fall at a rate of 8.8 kg/s vertically onto a freight car that is moving horizontally at a constant speed 2.6 m/s on a straight track. 3 What force, in newtons, is needed to keep the freight car moving at a constant velocity? F= sin() cotan() cos() asin() atan()) acotan() cosh() tan() *( acos() E mình) tanh() cotanh() Degrees O Radians Submit Flint Hists: 1 for a 0% Geduction. Hints remaining: The force on the freight car due to the changing mass is provided by Newton's 2nd Law as follows: F-(dpd)-d/dt (w) If both the mass and the velocity are i time-varying, then you can show from the chain rule the following F-vdwd- med/dr. In this case, the velocity is constant. This reduces the full expression of Newton's 2nd Law to one term, where the time-rate of change for the mass is given 789 456 123 0 NO RES give up Feedback: dedoction per feedback. Grade Summary Deductions Potential 0% 1604 Late Work 100% Late Potential 10046 Submissions Attempts remaining 100 (per attempt) detailed view