upward 相關
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... Rule", the direction is then pointing vertically upward . If a torque is applied to the disk and makes...
1. A bullet is fired straight upward from ground with a velocity of 400 m/s from physics, its...
...situation is just the same as throwing an object (e.g. a ball) vertically upward from earth surface. After the object leaves the thrower's hand, ...
...to the horizontal. 2(a) vertical speed =20*sin 27° =9.08 m/s ( upward ) so the time required is given by: s=ut+0.5gt^2 120...
1. Your calculation is correct. 2. Your calculation is correct. 3. Yes, calculation is correct.
... of the two triangles are the same, this shows that the upward displacement equals to the downward displacement. Hence, point R ...
Please read: Q.1 & Q.2 --- http://i.imgur.com/ztTp9Tf.jpg Q.3 --- http://i.imgur.com/yuZJpvT.jpg
1. tan∠BAC = 2 and tan∠EBF= 2 ∠BAC = ∠EBF CA // BF (alt. ∠s equal) CA is a vertically line. CA² = AB² +BC² (Pythagorean theorem) CA² = 2² + 1² m² CA = √5 m...
The force component that pushes the box going up the plane = F.cos(48) Hence, use : net force = mass x acceleration F.cos(48) - mg.sin(48) = ma i.e. F = [m(a + g.sin(48))]/cos(48) = [37.6 x (8.1 + 10.sin(48))]/cos(48) N F = 873 N [Take g, the acceleration...
upward 相關
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