An autonomous delivery drone is ascending vertically at a velocity of 4.2 m/s.
The drone accelerates upwards at a rate of 1.8 m/s2 until its velocity reaches 12.3 m/s.
Calculate the time taken for this acceleration.
Use the equation:
time taken=change in velocityacceleration \text{time taken} = \frac{\text{change in velocity}}{\text{acceleration}} time taken=accelerationchange in velocity53 exam-style questions on Edexcel GCSE Physics 2.2 Speed, velocity and acceleration, covering 2.2.1 Speed and distance–time graphs, 2.2.2 Acceleration and the uniform-acceleration equation, 2.2.3 Velocity–time graphs, and 2.2.4 Measuring speed, typical speeds and free-fall acceleration. Each one has a worked solution and a mark scheme showing where the marks go.