7 Passengers are not allowed to stand on the upper deck of double-decker buses.upper decklower deckWhy is this?A They would cause the bus to become less stable.B They would cause the bus to slow down.C They would increase the kinetic energy of the bus.D They would lower the centre of mass of the bus.8 On which ball is a non-zero resultant force acting?Aa ball moving at constantspeed on a smooth surfacedirection ofmovementBa ball at rest on a benchCa free-falling ball whichhas just been releasedDa ball floating on waterwaterdirection ofmovement9 Electricity can be obtained from different energy resources.Which energy resource is used to obtain electricity without producing heat to boil water?A coalB gasC hydroelectricD nuclear

Suppose you're riding the bus one day. All the seats were taken, so you're standing in the aisle, facing the front of the bus, while the the bus is moving. Suddenly, the bus driver slams on the brakes and you fly forward! Which of the following forces pushed you to the front of the bus? The force of static friction between you and the floor of the bus. No force pushed you to the front of the bus. An applied force of the bus. The force of gravity.

A bus is moving with constant velocity. Suddenly the bus stops. Passengers will tend to move.BackwardForwardUnaffectedRise upward

10. A child standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the child continues moving forward at the original speed. This is an example of OA. Newton's First Law of Motion. OB. an action-reaction pair. C. Newton's Third Law of Motion. OD. Newton's Second Law of Motion.

If the mass of a bus is 2000 kg, calculate the force required to speed up a bus at the 6ms–2?

A 70-kg man is standing in a 20-kg boat. Thinking he is stepping out onto the dock, the man steps to the right. However, the following will actually happen (ignore the friction of the water or air on the boat or the man):Select one:a.None of the above.b.The boat doesn't move and the man moves to the right.c.The man actually stays still while the boat moves toward the left.d.The man only moves a short distance to the right while the boat moves a larger distance to the left.