Homework for Lab 6: Newton\'s Law ton\'s Third Name Date Section Imagine that a
ID: 1429474 • Letter: H
Question
Homework for Lab 6: Newton's Law ton's Third Name Date Section Imagine that a large crate (B) and a small crate (A) are in direct contact with each other. each other, and a worker pushes y on the small crate, as seen in Fig. 6.6. Figure 6.6: A worker pushes on a small crate that is in contact with a large crate. below, indicate whether the magnitude of the force that crate A exerts on crate B greater than, equal to, or less than the magnitude of the force that crate B exerts on crate A by inserting 1. For each of the situations the appropriate mathematical symbol,>or (a) The worker is not pushing hard enough to move the crates. Fon B by A Fon A by B (b) The worker pushes harder, causing the crates to accelerate to the right. Fon B by A on A by B (c) The worker is pushing just hard enough to move the crates at a constant speed. Fon B by A on A by B (d) The worker reduces the size of her push so that the crates begin to slow down, due to friction. Fon B by A on A by BExplanation / Answer
(a)
As there is not movement in system. so force is balanced
Fon B by A=Fon A by B
(b) In this case the system is moving so there is net force on the system towards the velocity
Hence
F on B by A > FonA by B
(c) Here no acceleration so no net force is acting on the system
F on B by A = FonA by B
(d) Net force acting against the motion
F on B by A < FonA by B
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