A force of 60 N is used to push a box, causing it to accelerate at 3 m/s². What is the mass of the box?
20 kg
Using Newton's second law, Force = mass × acceleration, so mass = Force ÷ acceleration = 60 N ÷ 3 m/s² = 20 kg.
Hence, the mass of the box is 20 kg.
A ball is released from rest at the top of an inclined smooth plane of length 5 cm. After reaching the bottom it travels horizontally on a smooth surface. How much distance will it travel horizontally? (Neglect the frictional forces as both the plane and surface are smooth)
Which example indicates that forces acting on an object are balanced?
A student pushes two carts, one heavy and one light, with the same force. According to Newton's second law, what will happen to their accelerations?
Why is it difficult to push a heavy box from rest, according to the first law of motion?
What is the effect of unbalanced forces on an object at rest?
Which scenario best demonstrates an unbalanced force acting on an object?
If an object continues moving in the same direction at the same speed, what can be inferred about the forces acting on it?
Which scenario does NOT correctly represent an action-reaction pair as per Newton's third law?
When a net force acts on a body, what does Newton's second law predict will happen to the body?
A car with a mass 2000 kg accelerates at 4 m/s2. According to Newton's Second Law, what is the magnitude of the force applied to the car?
Which of the following is correct?
I. The mass of an object is a measure of its inertia
II. In an isolated system the total momentum remains conserved
A 20.0 kg block is placed on a smooth horizontal table. A horizontal force of 12.0 Newton is applied to the block. The position of the block at 5.0 sec is
A moving body covers 10 m distance along straight path in each second. The body is under which type of motion?
A subway train starts from rest at a station and accelerates at a rate of 3 ms-2 for 10s. It then runs at a constant speed for 20s and decelerates at 5 ms-2 unit it stops at the next station. The distance between the two stations is:
In a desert, a beetle's motion sends fast longitudinal pulses, vL = 150 ms-1, and slower transverse pulses, vS = 50 ms-1, along the sand's surface. The sand scorpion has eight legs; spread roughly in a circle of 5 cm diameter, intercepts the faster longitudinal pulses 4.0 ms earlier than the slower transverse pulse. The pray is located at a distance of: