Physics, 01.10.2019 01:00 eburnhisel2023
Ihave these questions i need to find the acceleration, explain how to do them, don't have to explain all xd
1. change in speed = 14 m/s; time taken = 2 seconds. calculate the acceleration.
2. a car accelerates from rest (zero speed) up to a speed of 30 m/s in 12 seconds. calculate the acceleration.
3. a cyclist in the tour de france accelerates down a hill from 22 m/s to a speed of 37 m/s. this acceleration takes him 2 seconds. calculate the acceleration.
4. a rocket launching in the ukraine accelerates upwards from rest to a speed of 12 km/s in 8 seconds. calculate the acceleration.
5. a cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. what is his acceleration ? is this acceleration higher than that of a car which accelerates from 0 to 30 m/s in 8 seconds?
6. a car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. find the car’s average acceleration.
7. a lizard accelerates from 2 m/s to 10 m/s in 4 seconds. what is the lizard’s average acceleration?
8. if a ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s2 for 3 seconds, what will its final velocity be?
Answers: 1
Physics, 22.06.2019 08:30
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Physics, 22.06.2019 15:30
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
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Physics, 22.06.2019 16:40
Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel
Answers: 3
Ihave these questions i need to find the acceleration, explain how to do them, don't have to explai...
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