Physics, 31.01.2020 09:01 jeffreyaxtell4542
Acar and a truck start from rest at the same instant, with the car initially at some distance behind the truck. the truck has a constant acceleration of 2.10 m/s2 and the car an acceleration of 3.40 m/s2. the automobile overtakes the truck after the truck has moved 60.0 m. a) t=7.56s b) how far was the car behind the truck initially? c) what is the speed of the truck when they are abreast? d) what is the speed of the car when they are abreast?
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The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
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Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.
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Acar and a truck start from rest at the same instant, with the car initially at some distance behind...
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