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Long cylindrical metal bars can be driven in to the ground by dropping a large heavy object on to them as shown in the diagram. An object which has a mass of 3.0 x 10³ kg is dropped from rest onto a metal bar which has a mass of 350 kg from a height, h. The object reaches the metal bar and maintains contact with the bar thereafter, without bouncing off. Before (a) (b) i. ii. iii. (c) i. ii. iii. iv. mass 3.0 x 10³ kg h mass = 350 kg After mass=3.0 x 10³ kg mass = 350 kg Calculate the height, h, if the object hits the metal bar at a speed of 6.0 m s-¹. Define linear momentum. Determine the speed at which the bar moves immediately after the object strikes it. The collision is defined as being inelastic. State what is meant by an inelastic collision. Once the metal bar has been hit, it travels a distance of 0.7 m into the ground before coming to a stop. Calculate the kinetic energy of the bar and metal object immediately after they join together. Calculate the change in potential energy of the bar and metal object from when they join to when they stop. Define the term Work Done by a force. Calculate the average resistive force against the bar when it is travelling through the ground.

Long cylindrical metal bars can be driven in to the ground by dropping a large heavy object on to them as shown in the diagram. An object which has a mass of 3.0 x 10³ kg is dropped from rest onto a metal bar which has a mass of 350 kg from a height, h. The object reaches the metal bar and maintains contact with the bar thereafter, without bouncing off. Before (a) (b) i. ii. iii. (c) i. ii. iii. iv. mass 3.0 x 10³ kg h mass = 350 kg After mass=3.0 x 10³ kg mass = 350 kg Calculate the height, h, if the object hits the metal bar at a speed of 6.0 m s-¹. Define linear momentum. Determine the speed at which the bar moves immediately after the object strikes it. The collision is defined as being inelastic. State what is meant by an inelastic collision. Once the metal bar has been hit, it travels a distance of 0.7 m into the ground before coming to a stop. Calculate the kinetic energy of the bar and metal object immediately after they join together. Calculate the change in potential energy of the bar and metal object from when they join to when they stop. Define the term Work Done by a force. Calculate the average resistive force against the bar when it is travelling through the ground.

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Long cylindrical metal bars can be driven in to the ground by dropping a large heavy object on to them as shown in the diagram. An object which has a mass of 3.0 x 10³ kg is dropped from rest onto a metal bar which has a mass of 350 kg from a height, h. The object reaches the metal bar and maintains contact with the bar thereafter, without bouncing off. Before (a) (b) i. (c) ii. iii. i. ii. iii. iv. mass 3.0 x 10³ kg h mass = 350 kg After mass=3.0 x 10³ kg mass = 350 kg Calculate the height, h, if the object hits the metal bar at a speed of 6.0 m s-¹. Define linear momentum. Determine the speed at which the bar moves immediately after the object strikes it. The collision is defined as being inelastic. State what is meant by an inelastic collision. Once the metal bar has been hit, it travels a distance of 0.7 m into the ground before coming to a stop. Calculate the kinetic energy of the bar and metal object immediately after they join together. Calculate the change in potential energy of the bar and metal object from when they join to when they stop. Define the term Work Done by a force. Calculate the average resistive force against the bar when it is travelling through the ground.
Transcribed Image Text:Long cylindrical metal bars can be driven in to the ground by dropping a large heavy object on to them as shown in the diagram. An object which has a mass of 3.0 x 10³ kg is dropped from rest onto a metal bar which has a mass of 350 kg from a height, h. The object reaches the metal bar and maintains contact with the bar thereafter, without bouncing off. Before (a) (b) i. (c) ii. iii. i. ii. iii. iv. mass 3.0 x 10³ kg h mass = 350 kg After mass=3.0 x 10³ kg mass = 350 kg Calculate the height, h, if the object hits the metal bar at a speed of 6.0 m s-¹. Define linear momentum. Determine the speed at which the bar moves immediately after the object strikes it. The collision is defined as being inelastic. State what is meant by an inelastic collision. Once the metal bar has been hit, it travels a distance of 0.7 m into the ground before coming to a stop. Calculate the kinetic energy of the bar and metal object immediately after they join together. Calculate the change in potential energy of the bar and metal object from when they join to when they stop. Define the term Work Done by a force. Calculate the average resistive force against the bar when it is travelling through the ground.
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