Question 2
At a birthday party, the celebrant decided to pop a corked fruit wine. If the cork shoots out of the bottle at an angle of 40o to the horizontal and travels a horizontal distance of 4.50 m in 1.25 s, calculate the cork’s initial speed.
Observation
This was a popular question among candidates. Many candidates attempted who attempted this questions scored zero due to poor knowledge of resolution of projectile velocity and range. Performance was low.
The expected answer is
x = (uo cos θ)t
4.5 = (uo cos 40)1.25