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... We know that there are no forward or backward forces on the object, because its forward speed is constant.
... The left and right forces on the object add up to zero, so it won't begin to move left or right. It'll just keep on with the same 20 m/s forward motion.
... Its velocity after 2 seconds, 10 seconds, or an hour, will still be 20 m/s forward.
Speed is the rate of change in distance covered by a moving body. It is given by dividing distance covered and time taken.
She takes 3 seconds to read the text which is equivalent to 3/ 3600 ( since 1hr=3600 secs) . we get 0.00833 hours.
Distance is given by speed × time
= 60 km/h × 0.00833 hrs = 0.05 km
Therefore, the car moved a distance of 0.05 km while she read the text.
A diverging lens has a focal length of magnitude 21.8 cm and the images are located behind the lens.
(a) u = -10.9 cm
1/v= 1/10.9 - 1/21.9
v= 21.8cm
Behind the lens.
(b) 1. Virtual
2. Virtual
3. Real
(c) m = v/u
1. Erect/ Upright
2. Upright
3. Inverted
(d) m = v/u
1. m = -43.6/-43.6 = 1. Magnification = 1.
2. infinity.
3. m = 21.8 / -10.9 = -2. Magnification = -2.
Therefore, these are the answers for above given question.
To know more about diverging lens visit
brainly.com/question/3140453
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