An automobile of mass 1500 kg moving at 20.0 m/s is braked suddenly with a constant braking force of 4000 N. How far does the car travel before stopping? A. 74.9 M B. 68.2 M C. 145.0 M D. 80.1 M E. 87.5 M

Q: What is the kinetic energy of a 3.2 kg fish swimming at 2.7 km / hour?

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Q: A 8-kg object falls vertically a distance of 5 m. Its potential energy has changed by approximately…

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Q: What is the potential energy of a 5kg bowling ball that is held 8.9 meters above the ground

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A: Given: initial position of the spring balance (x1) = 0.1 m final position of the spring balance (x2)…

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Q: A person pushes a stopped car of mass 400 kg with a force of 200 N until the car its velocity is 5…

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Q: An object has its velecity increased by a factor of two, the kinetic energy is increased by a factor…

A: Let the mass of the object = m Let the initial velocity = v

Q: What is escape speed?

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Q: A captain with a mass of 48kg climbs a set of stairs that are 5m high. How much gravitational…

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Q: A placekicker in football is attempting a field goal and kicks 0.75 kg football which hits the…

A: Introduction: Gravitational potential energy is the energy poses by the body in the presence of…

Q: What is the potential energy of a body in space?

A: Potential energy is,

Q: a shot putter hrows a 6kg shot with a final velocity of 7m/s. What is the kinectic energy of the…

A: Given that,  A shot putter throws a 6 kg shot with a final velocity of 7 m/s Mass  = 6 kg Velocity =…

Q: 85. Projectile A is fired with velocity v at an angle of 30.° above the horizontal. Projectile B is…

A: If an projectile is fired with initial speed, v at an angle θ above the horizontal direction,

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Q: A 1kg cannon ball is fired horizontally with an initial velocity of 5m/s. If the cannon was atop a…

A: Given: Mass of a canon m = 1 kg. Velocity of firing canon v = 5 m/s. height of canon h = 20 m.

Q: Is the average swimmer taller than the average volleyball player?

A: Average tallest players are basketball players and then comes volleyball players .

Q: The three balls in (Figure 1) which have equal masses, are fired with equal speeds from the same…

A: The given figure is  Va=Vb=Vc The magnitude of all the velocities would be same , Although Vertical…

Q: If a 2 Kg object stretches a spring by 3 cm, how much will the spring be stretched when it supports…

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Q: What is the gravitational potential energy of a 450 kg car at the top of a 25 m parking garage?

A: The expression for gravitational potential energy is, Ugrav=mgh          (I)          m=mass,g=9.8…