A man is driving his 4.5 m long automobile at 90 kph when the traffic signal in front of him changes to yellow. He is 55 m. from the intersection when he applies the brakes after 1.5 second reaction time. If the car can decelerates at a rate of 3.2 m/s2, at what velocity will he be moving when he reaches the intersection? If the yellow light is 5 seconds long, where will the man be when the light turns red? Assuming he will continue through at the speed found in part when the light changes to red. How long will the light have red when he clears the intersection having a width of 20m?

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A: To find the acceleration of the ball.given,  the ball displacement by the spring, x = 2mthe velocity…

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Q: I Review Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 ft/s when the…

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Q: Cars A and B shown are approaching an overpass with a constant velocity. A has a speed of 50 km/h…

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Q: Q17. As shown in the image below, the football player at A throws a football C with a velocity of va…

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Q: At the instant shown in (Figure 1), car A has a speed of 18 km/h , which is being increased at the…

A: Given data as per question speed of car A =18 km/h The increasing rate of speed of car A =300 km/h2…

Q: Particles B and A move along the parabolic and circular paths, respectively. Velocities of both…

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Q: A two-stage missile is fired vertically from rest with the acceleration shown. In 15 s the first…

A: To plot: The v-t and s-t graphs which describe the two-stage motion of the missile for 0 ≤t≤ 20 s.

Q: Train A is traveling at a constant speed VA = 36 mi/hr while car B travels in a straight line along…

A: Here we will use relative velocity approach

Q: Train A is traveling at a constant speed VÀ = 37 mi/hr while car B travels in a straight line along…

A: To Find :  how much speed of the car is travelling  Given :  train A constant velocity  VA=37…

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Q: rain A is traveling at a constant speed VA = 37 mi/hr while car B travels in a straight line along…

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Q: A snowboarder starts from rest at the top of a double black diamond hill. As she rides down the…

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Q: A bus starts from rest with a constant acceleration of 1 m/s. Determine the time required for it to…

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Q: Determine the acceleration of the ball

A: To find the acceleration of the ball.given,  the ball displacement by the spring, x = 2mthe velocity…

Q: 1. The car is traveling at 48 km/h when the traffic light 90 m ahead turns yellow. The driver takes…

A: Given Data: The initial speed of the car, u=48 km/h The reaction time of the driver, t=1 second

Q: Determine the minimum distance d between the cars so as to avoid a collision.

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Q: Car A is traveling at a constant speed VA = 144 km/h at a location where the speed limit is 100…

A: The speed of car A, vA = 144 km/h = 40 m/sThe acceleration of car B, a = 5.8 m/s^2The speed of car…

Q: Two particles P and Q start from rest at the origin s=0 and move along a straight line with…

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Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

A: Given  velocity of airplane B (vB)  acceleration of airplane A (aA) =acceleration of airlane B (aB)t…

Q: 1. The two cars A and B enter an unbanked and level turn. They cross line C-C simultaneously, and…

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Q: Q16. As shown in the image below, the football player at A throws a football Cwith a velocity of vA…

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.