Determine the cause of acceleration in each scenario. an airplane turning from south to west at constant speed is accelerating due to a change in . a biker going 7 m/s west after travelling north at 5 m/s is accelerating due to a change in . a runaway shopping cart speeding up as it goes down a hill is accelerating due to a change in .

Answer 1) : Change in direction.

Explanation : When an airplane starts to turn from south to west at constant speed gets accelerated due to change in direction. The change in direction of the airplane causes the airplane to accelerate in the direction of west while it was moving in south. Here the acceleration is being affected because of the change in direction of the object moving with a constant speed.

Answer 2) Change in direction and increasing speed.

Explanation : When a biker was riding at the speed of 5 m/s north and then changed the direction to west at an increased speed of 7 m/s this was due to increased speed and change in the direction of the bike.

There was two factors which contributed to change the acceleration in this case. It was because of change in speed of the bike and also because of change in direction. This kept the bike in acceleration by increasing the speed while changing the direction.

Answer 3) Increasing speed.

Explanation : While the shopping cart was observed to speed up on the runaway while it goes down a hill gets accelerated due to change in its speed.

In this case, when the shopping cart is been released from the upside runaway; as it goes down it gains more speed due to the slope of the runaway. This is because the acceleration is increasing because there is increase in the speed of the shopping cart.

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