Answer:
v=82 m/s
s=116m
Explanation:
a=20t

using condition given at t=0

c=-8
now equation becomes
v=10t²-8
v at t= 3s v=82 m/s
again


now using condition given s=50 at t=0
b=50
now equation becomes

calculating s at t=3s
s=116m
There are now six major branches of engineering: Mechanical, Chemical, Civil, Electrical, Management, and Geotechnical, and literally hundreds of different subcategories of engineering under each branch.
Answer:
Ea public address glven via the intercom system of a large buildingxplanation:
Answer: A first class lever in static equilibrium has a 50lb resistance force and 15lb effort force. The lever's effort force is located 4 ft from the fulcrum.
Explanation: