A2.2 × 103
kg car accelerates from rest under
the action of two forces. one is a forward
force of 1147 n provided by traction between
the wheels and the road. the other is a 934 n
resistive force due to various frictional forces.
how far must the car travel for its speed to
reach 2.2 m/s?

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?