An engineer investigates a model robotic cart accelerating down a smooth ramp onto a level horizontal guide track, where it travels at a constant velocity.
Suggest the equipment the engineer uses to measure the length of the ramp.
Suggest an electronic timing device the engineer could use to measure the time it takes for the cart to travel down the ramp.
Below is the velocity-time graph representing the motion of the cart:
State the time at which the cart starts to move.
State the time at which the cart reaches the bottom of the ramp.
Describe how the acceleration of the cart would change if the ramp were made steeper.
Describe how the line on the velocity-time graph representing the acceleration would change if the ramp were made steeper.
Velocity is a vector quantity, whereas speed is a scalar quantity.
Complete the sentence about vector quantities. Use words from the list:
accelerationdirectiongravitymagnitudemass \text{acceleration} \quad \text{direction} \quad \text{gravity} \quad \text{magnitude} \quad \text{mass} accelerationdirectiongravitymagnitudemass"A vector quantity has both .................................... and .................................... ."