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27 Nov 2019
A block rests on a horizontal, frictionless surface. A string isattached to the block, and is pulled with a force of 45.0 N at anangle ? above the horizontal, as shown in the figure. After theblock is pulled through a distance of 1.50 m its speed is v = 2.20m/s, and 45.0 J of work has been done on it.
(a) What is the angle ??
(b) What is the mass of the block?
A block rests on a horizontal, frictionless surface. A string isattached to the block, and is pulled with a force of 45.0 N at anangle ? above the horizontal, as shown in the figure. After theblock is pulled through a distance of 1.50 m its speed is v = 2.20m/s, and 45.0 J of work has been done on it.
(a) What is the angle ??
(b) What is the mass of the block?
Casey DurganLv2
24 Mar 2019
