9. Exercises - Versionshistorik

Ian den 14 september 2009 kl. 15.43

Ian — Mon, 14 Sep 2009 15:43:34 GMT

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Rad 6:		Rad 6:
	\| style="border-bottom:1px solid #797979" width="100%"\|		\| style="border-bottom:1px solid #797979" width="100%"\|
	\|}		\|}
		+
	===Exercise 9.1===		===Exercise 9.1===
	<div class="ovning">		<div class="ovning">

Ian den 14 september 2009 kl. 15.39

Ian — Mon, 14 Sep 2009 15:39:48 GMT

← Äldre version		Versionen från 14 september 2009 kl. 15.39
Rad 38:		Rad 38:

	</div>{{#NAVCONTENT:Answer\|Answer 9.4\|Solution\|Solution 9.4}}		</div>{{#NAVCONTENT:Answer\|Answer 9.4\|Solution\|Solution 9.4}}
		+
		+
		+
		+	===Exercise 9.5===
		+	<div class="ovning">
		+
		+	A skier of mass 60 kg is travelling at a constant speed down a slope inclined 20<math>{}^\circ </math> to the horizontal, subject to; air resistance and friction where the coefficient of friction between skier and the slope is 0.05. Find the magnitude of the air resistance force acting on the skier.
		+
		+	</div>{{#NAVCONTENT:Answer\|Answer 9.5\|Solution\|Solution 9.5}}
		+
		+
		+	===Exercise 9.6===
		+	<div class="ovning">
		+
		+	A car of mass 1600 kg is towed up a hill of inclined at 5<math>{}^\circ </math> to the horizontal. The car moves with a constant velocity. The tow rope is at an angle of 7<math>{}^\circ </math> to the hill.
		+
		+	[[Image:E9.6.GIF]]
		+
		+	Model the car as a particle.
		+
		+	a) Find the magnitude of the tension in the rope.
		+
		+	b) Find the magnitude of the normal reaction between the hill and the
		+	sledge.
		+
		+
		+	</div>{{#NAVCONTENT:Answer\|Answer 9.6\|Solution a\|Solution 9.6a\|Solution b\|Solution 9.6b}}

Ian den 14 september 2009 kl. 15.29

Ian — Mon, 14 Sep 2009 15:29:27 GMT

← Äldre version		Versionen från 14 september 2009 kl. 15.29
Rad 30:		Rad 30:

	</div>{{#NAVCONTENT:Answer\|Answer 9.3\|Solution\|Solution 9.3}}		</div>{{#NAVCONTENT:Answer\|Answer 9.3\|Solution\|Solution 9.3}}
		+
		+
		+	===Exercise 9.4===
		+	<div class="ovning">
		+
		+	A block, of mass 4 kg, is being dragged across a rough horizontal surface at a constant velocity by a force of 20 N acting parallel to the surface. Find the coefficient of friction between the object and the surface.
		+
		+	</div>{{#NAVCONTENT:Answer\|Answer 9.4\|Solution\|Solution 9.4}}

Ian den 14 september 2009 kl. 15.27

Ian — Mon, 14 Sep 2009 15:27:34 GMT

← Äldre version		Versionen från 14 september 2009 kl. 15.27
Rad 22:		Rad 22:

	</div>{{#NAVCONTENT:Answer a\|Answer 9.2a\|Answer b\|Answer 9.2b\|Answer c\|Answer 9.2c\|Solution a\|Solution9.2a\|Solution b\|Solution 9.2b\|Solution c\|Solution 9.2c}}		</div>{{#NAVCONTENT:Answer a\|Answer 9.2a\|Answer b\|Answer 9.2b\|Answer c\|Answer 9.2c\|Solution a\|Solution9.2a\|Solution b\|Solution 9.2b\|Solution c\|Solution 9.2c}}
		+
		+
		+	===Exercise 9.3===
		+	<div class="ovning">
		+
		+	A bicycle moves with a constant velocity along a straight horizontal road. If the forward force which the cyclist exerts by pedalling is 28 N, what is the magnitude of the resistive force acting on the bicycle and cyclist ?
		+
		+	</div>{{#NAVCONTENT:Answer\|Answer 9.3\|Solution\|Solution 9.3}}

Ian den 14 september 2009 kl. 14.06

Ian — Mon, 14 Sep 2009 14:06:31 GMT

← Äldre version		Versionen från 14 september 2009 kl. 14.06
Rad 12:		Rad 12:

	</div>{{#NAVCONTENT:Answer\|Answer 9.1\|Solution\|Solution 9.1}}		</div>{{#NAVCONTENT:Answer\|Answer 9.1\|Solution\|Solution 9.1}}
		+
		+
		+	===Exercise 9.2===
		+	<div class="ovning">
		+
		+	Each of the bodies shown below are moving with a constant velocity. Use this to find P and Q.
		+
		+	[[Image:E9.2.GIF]]
		+
		+	</div>{{#NAVCONTENT:Answer a\|Answer 9.2a\|Answer b\|Answer 9.2b\|Answer c\|Answer 9.2c\|Solution a\|Solution9.2a\|Solution b\|Solution 9.2b\|Solution c\|Solution 9.2c}}

Ian den 14 september 2009 kl. 13.42

Ian — Mon, 14 Sep 2009 13:42:29 GMT

← Äldre version		Versionen från 14 september 2009 kl. 13.42
Rad 6:		Rad 6:
	\| style="border-bottom:1px solid #797979" width="100%"\|		\| style="border-bottom:1px solid #797979" width="100%"\|
	\|}		\|}
		+	===Exercise 9.1===
		+	<div class="ovning">
		+
		+	A parachutist is falling vertically at a constant speed. He has mass 80 kg. Find the magnitude of the upward force acting on the parachute.
		+
		+	</div>{{#NAVCONTENT:Answer\|Answer 9.1\|Solution\|Solution 9.1}}

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Ian — Mon, 14 Sep 2009 13:39:50 GMT

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