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?
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