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- 1. At at bal king sit the lat he gr resista of green of m/s. oving the me the 3. Many roller coasters have loops where carts roll on a track that curves sharply up into the air. At the top, the people are upside down (and usually screaming). For safety reasons, many of these roller coasters must have a minimum speed at the top of the loop. In the roller coaster shown in Figure 6, the cart must have a minimum speed of 10.0 m/s at the top of the loop to make it around safely. A Assuming that the roller coaster starts from rest at the top of the first hill and there is no friction on the roller coaster, what is the minimum height of the first hill? T Figure 6 O obiect initially at 16 m ground level1. A doctor travels to the east from city A to city B (75 km) in 0.5 hour. What is the doctor’saverage velocityhelp?
- A skateboarder starts up a 1.0-m-high, 30∘ ramp at a speed of 6.7 m/s. The skateboard wheels roll without friction. At the top, she leaves the ramp and sails through the air.How far from the end of the ramp does the skateboarder touch downcan you re work this. I got 10.2 m/s for v2 and 4.54 m/s for v1A brick falls freely from a high scaffold and hits thr ground after 3.5 seconds. How high is the scaffold? What is the velocity of the brick before hitting the ground?
- A bus has an initial speed of 10 m/sec. It is picking up speed with an acceleration of 6 m/sec/sec over the next 5 seconds. O Give the speed of the car in m/sec at each second.I need the answer as soon as possibleTwo metal balls collided with other and moved away in oppo direction. The silver metal ball v 185N and the gold metal ball w 160 N. Given that the first ball ho velocity of 2.50(m)/(s), what is the velocity of the second ball?