An automobile starting from rest speeds up to 12 m/s with a constant acceleration of 1.2 m/s2. Runs at fast speed for some time, and finally comes to rest with a deceleration of 1.5 m/s2. If the total distance travelled is 390 m, find the total time required. Draw the v-t and s-t curves.

Q: A particle moves along a straight line with variable acceleration. If displacement is measured in m,…

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Q: vehicle starting from rest accelerates at a rate of 3m/s2 for 8 seconds. It then continues at this…

A: Distance is defined as the total path covered by the body during its motion while displacement is…

Q: what is its average speed for the whole trip?

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Q: When t = 0 sec, the displacement of the particle is s = 0 and the velocity v = 9 m/sec. Find the…

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Q: A rocket sled is a test platform that slides along a set of rails, propelled by rockets. During a…

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Q: The displacement of a particle is given by s = 21 -30r + 100r – 50 where s is in feet and tis in…

A: The displacement is given as, s=2t3-30t2+100t-50 The displacement vs time can be plotted as shown…

Q: The car slows down at constant acceleration of 4 m/s^2 from the velocity of 40 m/s. Detemine the…

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Q: A car moves along a straight line whose equation of motion is given by V =4t2-2t+2 where (V) is in…

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Q: A car is driving along a curved road at a speed which is decreasing at a constant rate. If he cuts…

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Q: Applying principles of dynamics, with step by step solutions pls (i give 5 stars) A freighter is…

A: Given data: Vi=8 nautical miles per hourVf=3 knotst=10 min=16 hrsa=-kV2 Need to determine the…

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Q: um dist f the speed be dictance over

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Q: QI : A particle travels along a straight line with a constant acceleration. When (s 5 ft), (v 4…

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Q: A car travelling between two places 2.5 km apart is uniformly accelerated for the first 10 seconds,…

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Q: Car goes at velocity 14 m/s before it start braking. When braking, its acceleration is known…

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Q: A 200 N block slides from rest down a plane inclined 25° to the horizontal. Assuming =0.20, what…

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Q: 3. A motorcycle travelling at 114 km/h decelerates to 30 km/h in a distance of 6236 m. Calculate the…

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Q: The odometer of a car reads 2020 km at the start of a trip and 2443 km at the end of the trip. If…

A: The average speed of the car is 42.3 km/hr or 11.75 m/sec.

Q: Q2/ Deceleration of a particle is based on relation a = -3 v? m/s² where v in m/s. If it moves along…

A: given; →acceleration(a)=-3v2 m/s2→initially velocity v=10m/s→and position(s)=8m   at time…

Q: A 150kg block is pulled in the horizontal surface by a force F in a direction 37° above the…

A: Given data: ◆ The mass of the block: m = 150 kg ◆ The angle made by pulling force with horizontal: θ…

Q: Q2. A car moves at 30 m/s as shown. The radius of the curve is 40 m. Upon entering the curve, the…

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Q: (b)Given the shown v-t diagram (1) construct a-t and s-t diagram (II) Using diagrams, find total…

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Q: A truck travelling at 70km/h suddenly puts on the brakes and it takes 50 seconds to travel the next…

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Q: A young woman rolls a ball up an incline and then allows it to fall back to her. The acceleration of…

A: Given data: a=0.38gv0=3.96 s Need to determine the  total time necessary for the ball to return to…

Q: The odometer of a car reads 2020 km at the start of a trip and 2443 km at the end of the trip. If…

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Q: A car can accelerate at a maximum acceleration of 24 ft/s2 whereas its maximum deceleration is -…

A: Given: The maximum acceleration of the car is a=24 ft/s2 and maximum deceleration is d=-32 ft/s2 let…

Q: A mass of 50 kg in space is subjected to an external vertical force of 160 N. If the local gravity…

A: Given, mass of object, m=50kgexternal vertical force, Fext=160NAcceleration due to gravity,…

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Q: 1) A subway train starts from rest at a station and accelerates at a rate of 1.6 m/s² for 14…

A: Given, u = 0  a1 = 1.6 m/s2 t1 = 14 sec t2 = 70 sec a2 = -3.5 m/s2 v = 0

Q: Q3: A freight train travels at v = 60(1 - e") f/s, where t is the elapsed time in seconds. Determine…

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Q: /4 The displacement of a particle which moves along the s-axis is given by s (-2 + 3t)e 0., where s…

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Q: A horse runs with a constant acceleration of a = 0.2 m/s^2 from rest for 15 seconds until it reaches…

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Q: 11. A particle is placed at the point A of a frictionless track ABC as shown in figure (8-W7). It is…

A: Data given-  hA = 1 m  hB = 0.5 m  g = 10 m/s2

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.