Question

Two blocks, 1 and 2, are connected by a rope R, of negligible mass. A second rope Ry, also of negligible mass, is tied to block 2. A force is applied to R, and the blocks accelerate forward. R, F Is the magnitude of the force exerted by the rope R, on block 1 larger, smaller, or equal to the magnitude of the force exerted by R, on block 2? • larger smaller equal Viewing Saved Work Revert to Last Response +-/1 points B My Notes + Ask Your Teacher A launcher has a 0.610 m long barrel. When fired, a projectile with a mass of 11.0 g accelerates from rest and exits the barrel at a speed of 855 m/s. What is the net force on the projectile (in N) while it is in the barrel? (Enter the magnitude. Assume a constant acceleration.) 495360 Viewing Saved Work Revert to Last Response

Answer 1

# Both the blocks are of same mass and have same acceleration. F - FR, =ma and FR = ma . FRE 20a and FR = ma Clearly FR₂ > FRI Hence, magnitude of force exerted by R, on block 1 is smaller than the force exerted by Rz. # using v2 - uuzas - (855) ² = 0 + 2ax(0.610) a= 599200.82 m/s² Hence force on projectile = mxa= 14 x 599200.82 = 6591.21N