How can an object be accelerating if it does not change in speed?
Speed is a scalar quantity, meaning that it only has a magnitude. Acceleration is a vector quantity, meaning that it has a magnitude and a direction. Velocity is the vector quantity equivalent of speed, as it has both magnitude and direction. Acceleration is dependent on velocity, rather than speed. Therefore, the object can be accelerating if it is changing direction without changing it's speed.
CC
Related Physics A Level answers
All answers ▸What is resistivity?
A conical pendulum is a mass suspended from a point that traces out a horizontal circle. By balancing the weight with the tension in the string, determine the speed of the bob.
Given the Earth orbits the Sun at a distance of 1.49*10^11m with Me = 5.97*10^24kg and Msolar = 1.99*10^30, what is the gravitational force between the Earth and Sun?
If a car is travelling over a curved hill, what is the maximum speed it can travel before losing contact with the road surface?