Heat and Thermodynamics — Physics STD 11 — Question

A car moving with velocity of 50 kmh-1 on a straight road is ahead of a jeep moving with velocity 75 kmh-1 would the relative velocity be altered if jeep is ahead of car?

A body of mass m is attached to lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5s. Find the value of m is kg.

A car of mass 2000 kg is lifted up a distance of 30 m by a crane in 1 min. A second crane does the same job in 2 min. Do the cranes consume the same or different amounts of fuel? What is the power supplied by each crane? Neglect Power dissipation against friction.

Will the displacement of a particle change on changing the position of origin of the coordinate system?

Define elastic and inelastic collision.

Define tube of flow.

When the planet Jupiter is at a distance of 824.7 million km from the earth, its angular diameter is measured to be 35.72″ of arc. Calculate diameter of Jupiter.

A body is moving along a circular path. How much work is done by the centripetal force?

What is the purpose of using shockers in a car?

Write down the moment of inertia of a disc of radius R and mass m about an axis in its plane at a distance R / 2 from its center.