A projectile is launched from ground level with a speed of 25 m/s at an angle of 42° to the horizontal. What is the horizontal distance from the starting point of the projectile when it hits the ground?
Resolve the vertical velocity of the projectile (25sin42) and use v=u+at where v=-25sin42m/s, u=25sin42m/s, a=-9.8m/s/s to find t. t= (50sin42)/9.8= 3.41sResolve horizontal velocity (25cos42) and multiply by time (3.41) to find distance travelled.3.41*25cos42= 63.4m
JW
Related Physics A Level answers
All answers ▸Explain why a transformer only works with an alternating current and doesn't with a direct current.
You are asked to find the Young modulus for a metal using a sample of wire. *(a) Describe the apparatus you would use, the measurements you would take and explain how you would use them to determine the Young modulus for the metal.
How can I find out the Young's modulus of a material?
How do I approach this question? Our teacher never explained it in class!